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UPSC Exam  >  UPSC Notes  >  UPSC Topic Wise Previous Year Questions  >  UPSC Prelims Previous Year Questions (2013-2018): Environment

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions PDF Download

2018

Q1: Which of the following leaf modifications occurs/occur in desert areas to inhibit water loss?
1. Hard and waxy leaves
2. Tiny leaves or no leaves
3. Thorns instead of leaves
Select the correct answer using the codes given below.
(a) 1 and 2 only
(b) 2 only
(c) 1 and 3 only
(d) 1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans:(d)

In desert areas, plants have evolved various leaf modifications to minimize water loss through transpiration. These adaptations help plants conserve water in the arid environment.

  • Hard and waxy leaves:Some desert plants have leaves with a thick, waxy cuticle that reduces water loss by providing a barrier against evaporation. The waxy coating also reflects sunlight, helping to keep the leaves cooler and further reducing water loss.
  • Tiny leaves or no leaves: Many desert plants have small, compact leaves that minimize the surface area exposed to the sun and hot, dry air. This adaptation reduces water loss through transpiration. Some desert plants, such as cacti, have evolved to have no leaves at all, and instead perform photosynthesis through their green stems.
  • Thorns instead of leaves:Some desert plants, such as cacti, have modified their leaves into thorns or spines. These structures protect the plant from herbivores and also help to reduce water loss by minimizing the surface area exposed to the environment. The photosynthetic function is carried out by the green stems of these plants.

Q2: In which one of the following States is Pakhui Wildlife Sanctuary located?
(a) Arunachal Pradesh 
(b) Manipur 
(c) Meghalaya 
(d)Nagaland

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

Q3: How is the National Green Tribunal (NGT) different from the Central Pollution Control Board (CPCB)?
1. The NGT has been established by an Act whereas the CPCB has been created by an executive order of the Government.
2. The NGT provides environmental justice and helps reduce the burden of litigation in the higher courts whereas the CPCB promotes cleanliness of streams and wells, and aims to improve the quality of air in the country.
Which of the statements given above is/are correct?
(a)1 only 
(b)2 only 
(c)Both 1 and 2 
(d) Neither 1 nor 2

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (b)


Q4: Which of the following leaf modifications occur(s) in the desert areas to inhibit water loss? 
1. Hard and waxy leaves 
2. Tiny leaves 
3. Thorns instead of leaves 
Select the correct answer using the code given below: 
(a)2 and 3 only
(b)2 only
(c) 3 only
(d)1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (d)

2017

Q1: Due to some reasons, if there is a huge fall in the population of species of butterflies, what could be its likely consequence/ consequences?
1. Pollination of some plants could be adversely affected.
2. There could be a drastic increase in the fungal infections of some cultivated plants.
3. It could lead to a fall in the population of some species of wasps, spiders and birds.
Select the correct answer using the code given below:
(a)1 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (d)

Q2: According to the Wildlife (Protection) Act, 1972, which of the following animals cannot be hunted by any person except under some provisions provided by law?
1. Gharial
2. Indian wild ass
3. Wild buffalo
Select the correct answer using the code given below:
(a)1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d)1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (d)

Q3: With reference to 'Global Climate Change Alliance', which of the following statements is/are correct?
1. It is an initiative of the European Union.
2. It provides technical and financial support to targeted developing countries to integrate climate change into their development policies and budgets.
3. It is coordinated by World Resources Institute (WRI) and World Business Council for Sustainable Development (WBCSD).
Select the correct answer using the code given below:
(a)1 and 2 only
(b)3 only
(c)2 and 3 only
(d)1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

Q4: Biological Oxygen Demand (BOD) is a standard criterion for
(a) Measuring oxygen levels in blood
(b) Computing oxygen levels in forest ecosystems.
(c) Pollution assay in aquatic ecosystems
(d) Assessing oxygen levels in high altitude regions.

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans:(c)

Q5: If you want to see gharials in their natural habitat, which one of the following is the best place to visit ?
(a)Bhitarkanika Mangroves
(b)Chambal River
(c)Pulicat Lake
(d)Deepor Beel

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (b)

Q6: Consider the following statements :
Climate and Clean Air Coalition (CCAC) to Reduce Short Lived Climate Pollutants is a unique initiative of G20.
The CCAC focuses on methane, black carbon and hydrofluorocarbons.
Which of the statements given above is/are correct?
(a)1 only
(b)2 only
(c)Both 1 and 2
(d)Neither 1 nor 2

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans:(b)

Q7: In India, if a species of tortoise is declared protected under Schedule I of the Wildlife (Protection) Act, 1972, what does it imply?
(a)It enjoys the same level of protection as the tiger.
(b) It no longer exists in the wild, a few individuals are under captive protection; and now it is impossible to prevent its extinction,
(c) It is endemic to a particular region of India.
(d) Both (b) and (c) stated above are correct in this context.

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

Q8: From the ecological point of view, which one of the following assumes importance in being a good link between the Eastern Ghats and the Western Ghats?
(a) Sathyamangalam Tiger Reserve
(b)Nallamala Forest
(c)Nagarhole National Park
(d)Seshachalam Biosphere Reserve

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

Q9: Consider the following statements in respect of Trade Related Analysis of Fauna and Flora in Commerce (TRAFFIC):
1. TRAFFIC is a bureau under United Nations Environment Programme (UNEP).
2. The mission of TRAFFIC is to ensure that trade in wild plants and animals is not a threat to the conservation of nature.
Which of the above statements is/are correct?
(a) 1 only
(b) 2 only
(c)Both 1 and 2
(d)Neither 1 nor 2

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Ans: (b)

Q10: In the context of solving pollution problems, what is/are the advantage/advantages of bioremediation technique?
1. It is a technique for cleaning up pollution by enhancing the same biodegradation process that occurs in nature.
2. Any contaminant with heavy metals such as cadmium and lead can be readily and completely treated by bioremediation using microorganisms.
3. Genetic engineering can be used to create microorganisms specifically designed for bioremediation.
Select the correct answer using the code given below:
(a) 1 only
(b)2 and 3 only
(c)1 and 3 only
(d) 1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (d)

2016

Q1: In which of the following can you find the Bureau of Energy Efficiency Star Label?
1. Ceiling fans
2. Electric geysers
3. Tubular fluorescent lamps
(a)1 and 2 only
(b)3 only
(c)2 and 3 only
(d)1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (d)

Q2: What is/are unique about 'Kharai camel', a breed found in India?
1. It is capable of swimming up to three kilometres in seawater.
2. It survives by grazing on mangroves.
3. It lives in the wild and cannot be domesticated.
(a) 1 and 2 only
(b)3 only
(c)1 and 3 only
(d) 1, 2 and 3

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Ans: (a)

Q3: Consider the following statements:
1. The International Solar Alliance was launched at the United Nations Climate Change Conference in 2015.
2. The Alliance includes all the member countries of the United Nations.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

Q4: Consider the following pairs:
UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year QuestionsWhich of the pairs given above is/are correctly matched?
(a) 1 and 2 only
(b)2 and 3 only
(c)3 only
(d) 1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (c)

Q5: Recently, for the first time in our country, which of the following States has declared a particular butterfly as 'State Butterfly'?
(a)Arunachal Pradesh
(b) Himachal Pradesh
(c) Karnataka
(d)Maharashtra

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (d)

Q6: Recently, our scientists have discovered a new and distinct species of banana plant which attains a height of about 11 metres and has orange-coloured fruit pulp. In which part of India has it been discovered?
(a) Andaman Islands
(b)Anaimalai Forests
(c)Maikala Hills
(d)Tropical rain forests of northeast

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

Q7: With reference to the Agreement at the UNFCCC Meeting in Paris in 2015, which of the following statements is/are correct?
1. The Agreement was signed by all the member countries of the UN and it will go into effect in 2017.
2. The Agreement aims to limit the greenhouse gas emissions so that the rise in average global temperature by the end of this century does not exceed 2°C or even 1.5°C above pre-industrial levels.
3. Developed countries acknowledged their historical responsibility in global warming and committed to donate $ 1000 billion a year from 2020 to help developing countries to cope with climate change.
(a)1 and 3 only
(b) 2 only
(c)2 and 3 only
(d)1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (b)

Q8: With reference to an initiative called 'The Economics of Ecosystems and Biodiversity (TEEB)', which of the following statements is/are correct?
1. It is an initiative hosted by UNEP, IMF and World Economic Forum.
2. It is a global initiative that focuses on drawing attention to the economic benefits of biodiversity.
3. It presents an approach that can help decision-makers recognize, demonstrate and capture the value of ecosystems and biodiversity.
(a) 1 and 2 only
(b)3 only
(c)2 and 3 only
(d) 1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (c)

Q9: The term 'Intended Nationally Determined Contributions' is sometimes seen in the news in the context of
(a)pledges made by the European countries to rehabilitate refugees from the war-affected Middle East
(b) plan of action outlined by the countries of the world to combat climate change
(c)capital contributed by the member countries in the establishment of Asian Infrastructure Investment Bank
(d)plan of action outlined by the countries of the world regarding Sustainable Development Goals

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Ans: (b)

Q10: With reference to 'Red Sanders', sometimes seen in the news, consider the following statements:
1. It is a tree species found in a part of South India.
2. It is one of the most important trees in the tropical rain forest areas of South India.
Which of the statements given above is /are correct?
(a) 1 only
(b) 2 only
(c)Both 1 and 2
(d) Neither 1 nor 2

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Ans: (a)

Q11: In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of Air Quality Index?
1. Carbon dioxide
2. Carbon monoxide
3. Nitrogen dioxide
4. Sulfur dioxide
5. Methane
Select the correct answer using the code given below.
(a) 1, 2 and 3 only
(b)2, 3 and 4 only
(c)1, 4 and 5 only
(d)1, 2, 3, 4 and 5

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Ans: (b)

Q12: What is/are the importance/importances of the 'United Nations Convention to Combat Desertification'?
1. It aims to promote effective action through innovative national programmes and supportive international partnerships.
2. It has a special/particular focus on South Asia and North Africa regions, and its Secretariat facilitates the allocation of major portion of financial resources to these regions.
3. It is committed to bottom-up approach, encouraging the participation of local people in combating the desertification.
Select the correct answer using the code given below.
(a)1 only
(b)2 and 3 only
(c)1 and 3 only
(d) 1, 2 and 3

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Ans: (c)

Q13: In which of the following regions of India are you most likely to come across the 'Great Indian Hornbill' in its natural habitat?
(a) Sand deserts of northwest India
(b)Higher Himalayas of Jammu and Kashmir
(c)Salt marshes of western Gujarat
(d)Western Ghats

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Ans: (d)

Q14: Which of the following are the key features of 'National Ganga River Basin Authority (NGRBA)?
1. River basin is the unit of planning and management.
2. It spearheads the river conservation efforts at the national level.
3. One of the Chief Ministers of the States through which the Ganga flows becomes the Chairman of NGRBA on rotation basis.
Select the correct answer using the code given below.
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d) 1, 2 and 3

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Ans: (a)

Q15: 'Gadgil Committee Report' and 'Kasturirangan Committee Report', sometimes seen in the news, are related to
(a)constitutional reforms
(b)Ganga Action Plan
(c)linking of rivers
(d)protection of Western Ghats

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Ans: (d)

Q16: Which of the following best describes/describe the aim of 'Green India Mission' of the Government of India?
1. Incorporating environmental benefits and costs into the Union and State Budgets thereby implementing the 'green accounting'
2. Launching the second green revolution to enhance agricultural output so as to ensure food security to one and all in the future
3. Restoring and enhancing forest cover and responding to climate change by a combination of adaptation and mitigation measures
Select the correct answer using the code given below.
(a)1 only
(b)2 and 3 only
(c)3 only
(d)1, 2 and 3

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Ans: (c)

Q17: 'Net metering' is sometimes seen in the news in the context of promoting the
(a)production and use of solar energy by the households/consumers
(b)use of piped natural gas in the kitchens of households
(c) installation of CNG kits in motorcars
(d)installation of water meters in urban households

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Ans: (a)

Q18: Which of the following statements is/are correct? Proper design and effective implementation of UN-REDD+ Programme can significantly contribute to
1. protection of biodiversity
2. resilience of forest ecosystems
3. poverty reduction
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 3 only
(c)2 and 3 only
(d)1, 2 and 3

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Ans: (d)

Q19: What is 'Greenhouse Gas Protocol'?
(a) It is an international accounting tool for government and business leaders to understand, quantify and manage greenhouse gas emissions
(b) It is an initiative of the United Nations to offer financial incentives to developing countries to reduce greenhouse gas emissions and to adopt eco-friendly technologies
(c)It is an inter-governmental agreement ratified by all the member countries of the United Nations to reduce greenhouse gas emissions to specified levels by the year 2022
(d)It is one of the multilateral REDD+ initiatives hosted by the World Bank

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

Q20: With reference to 'Agenda 21', sometimes seen in the news, consider the following statements:
1. It is a global action plan for sustainable development.
2. It originated in the World Summit on Sustainable Development held in Johannesburg in 2002.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

2015

Q1: Which one of the following regions of India has a combination of mangrove forest, evergreen forest and deciduous forest?
(a) North Coastal Andhra Pradesh
(b) South-West Bengal
(c) Southern Saurashtra
(d) Andaman and Nicobar Islands

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer
Ans:(b)

Q2: Which one of the following National Parks has a climate that varies from tropical to subtropical, temperate and arctic?
(a) Khangchendzonga National Park
(b) Nandadevi National Park
(c) Neora Valley National Park
(d) Namdapha National Park

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Ans: (d)

Q3: In a particular region in India, the local people train the roots of living trees into robust bridges across the streams. As the time passes, these bridges become stronger. These unique ‘living root bridges’ are found in:
(a) Meghalaya
(b) Himachal Pradesh
(c) Jharkhand
(d) Tamil Nadu

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Ans: (a)

Q4: Consider the following States:
1. Arunachal Pradesh
2. Himachal Pradesh
3. Mizoram
In which of the above States do ‘Tropical Wet Evergreen Forests’ occur?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

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Ans: (c)

Q5: With reference to an organization known as 'BirdLife International', which of the following statements is/are correct?
1. It is a Global Partnership of Conservation Organizations.
2. The concept of 'biodiversity hotspots' originated from this organization.
3. It identifies the sites known/referred to as 'Important Bird and Biodiversity Areas'.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

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Ans: (b)

Q6: With reference to the Indian Renewable Energy Development Agency Limited (IREDA), which of the following statements is/are correct?
1. It is a Public Limited Government Company.
2. It is a Non-Banking Financial Company.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

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Ans: (c)

Q7: Which one of the following is associated with the issue of control and phasing out of the use of ozone-depleting substances?
(a) Bretton Woods Conference
(b) Montreal Protocol
(c) Kyoto Protocol
(d) Nagoya Protocol

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Ans: (b)

Q8: Which of the following statements regarding "Green Climate Fund" is/are correct?
1. It is intended to assist the developing countries in adaptation and mitigation practices to counter climate change.
2. It is founded under the aegis of UNEP, OECD, Asian Development Bank and World Bank.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

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Ans: (c)

Q9: 'BioCarbon Fund Initiative for Sustainable Forest Landscapes’ is managed by the:
(a) Asian Development Bank
(b) International Monetary Fund
(c) United Nations Environment Programme
(d) World Bank

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Ans: (d)

Q10: Which one of the following is the best description of the term ‘ecosystem’?
(a) A community of’ organisms interacting with one another
(b) That part of the Earth which is inhabited by living organisms
(c) A community of organisms together with the environment in which they live
(d) The flora and fauna of a geographical area

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Ans: (c)

Q11: The Genetic Engineering Appraisal Committee is constituted under the:
(a) Food Safety and Standards Act, 2006
(b) Geographical Indications of Goods (Registration and Protection) Act, 1999
(c) Environment (Protection) Act, 1986
(d) Wildlife (Protection) Act, 1972

Ans: (c)

Q12: In India, in which one of the following types of forests is teak a dominant tree species?
(a) Tropical moist deciduous forest
(b) Tropical rain forest
(c) Tropical thorn scrub forest
(d) Temperate forest with grasslands

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Ans: (a)

Q13: With reference to ‘Forest Carbon Partnership Facility’, which of the following statements is/are correct?
1. It is a global partnership of governments, businesses, civil society and indigenous peoples.
2. It provides financial aid to universities, individual scientists and institutions involved in scientific forestry research to develop eco-friendly and climate adaptation technologies for sustainable forest management.
3. It assists the countries in their ‘REDD+ (Reducing Emissions from Deforestation and Forest Degradation+)’ efforts by providing them with financial and technical assistance.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

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Ans: (c)

Q14: “Each day is more or less the same, the morning is clear and bright with a sea breeze; as the Sun climbs high In the sky, heat mounts up, dark clouds form, then rain comes with thunder and lightning. But rain is soon over.” Which of the following regions is described in the above passage?
(a) Savannah
(b) Equatorial
(c) Monsoon
(d) Mediterranean

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Ans: (b)

Q15: Which of the following National Parks is unique in being a swamp with floating vegetation that supports a rich biodiversity?
(a) Bhitarkanika National Park
(b) Keibul Lamjao National Park
(c) Keoladeo Ghana National Park
(d) Sultanpur National Park

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Ans: (b)

Q16: With reference to the International Union for Conservation of Nature and Natural Resources (IUCN) and the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), which of the following statements is/are correct?
1. IUCN is an organ of the United Nations and CITES is an international agreement between governments.
2. IUCN runs thousands of field projects around the world to better manage natural environments.
3. CITES is legally binding on the States that have joined it, but this Convention does not take the place of national laws.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

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Ans: (b)

Q17: Which one of the following is the national aquatic animal of India?
(a) Saltwater crocodile
(b) Olive ridley turtle
(c) Gangetic dolphin
(d) Gharial

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Ans: (c)

Q18: With reference to ‘dugong’, a mammal found in India, which of the following statements is/are correct?
1. It is a herbivorous marine animal.
2. It is found along the entire coast of India.
3. It is given legal protection under Schedule I of the Wildlife (Protection) Act, 1972.
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 2 only
(c) 1 and 3 only
(d) 3 only

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Ans: (c)

2014

Q1: Lichens, which are capable of initiating ecological succession even on a bare rock, are actually a symbiotic association of
(a) Algae and bacteria
(b) Algae and fungi
(c) Bacteria and fungi
(d) Fungi and mosses

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Ans: (b)

Q2: If you travel through the Himalayas, you are likely to see which of the following plants naturally growing there?
1. Oak
2. Rhododendron
3. Sandalwood
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

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Ans: (a)

Q3: Which of the following are some important pollutants released by the steel industry in India?
1. Oxides of sulphur
2. Oxides of nitrogen
3. Carbon monoxide
4. Carbon dioxide
Select the correct answer using the code given below.
(a) 1, 3 and 4 only
(b) 2 and 3 only
(c) 1 and 4 only
(d) 1, 2, 3 and 4

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Ans: (d)

Q4: In India, cluster bean (Guar) is traditionally used as a vegetable or animal feed, but recently the cultivation of this has assumed significance. Which one of the following statements is correct in this context?
(a) The oil extracted from seeds is used in the manufacture of biodegradable plastics
(b) The gum made from its seeds is used in the extraction of shale gas
(c) The leaf extract of this plant has the properties of antihistamines
(d) It is a source of high quality biodiesel.

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Ans: (b)

Q5: The most important strategy for the conservation of biodiversity together with traditional human life is the establishment of
(a) Biosphere reserves
(b) Botanical gardens
(c) National parks
(d) Wildlife sanctuaries

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

Q6: Consider the following pairs:
UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year QuestionsWhich of the above pairs is/are correctly matched?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

Q7: The scientific view is that the increase in global temperature should not exceed 2°C above pre-industrial level. If the global temperature increases beyond 3°C above the pre-industrial level, what can be its possible impact/impacts on the world?
1. Terrestrial biosphere tends toward a net carbon source.
2. Widespread coral mortality will occur.
3. All the global wetlands will permanently disappear.
4. Cultivation of cereals will not be possible anywhere in the world.
Select the correct answer using the code given below.
(a) 1 only
(b) 1 and 2 only
(c) 2, 3 and 4 only
(d) 1, 2, 3 and 4

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (b)

Q8: Which of the following statements is/are correct regarding vegetative propagation of plants?
1. Vegetative propagation produces clonal population.
2. Vegetative propagation helps in eliminating the virus.
3. Vegetative propagation can be practiced most of the year.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (c)

Q9: Which one of the following is the correct sequence of a food chain?
(a) Diatoms—Crustaceans—Herrings
(b) Crustaceans—Diatoms—Herrings
(c) Diatoms—Herrings—Crustaceans
(d) Crustaceans—Herrings—Diatoms

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

Q10: With reference to Bombay Natural History Society (BNHS), consider the following statements:
1. It is an autonomous organization under the Ministry of Environment and Forests.
2. It strives to conserve nature through action-based research, education and public awareness.
3. It organizes and conducts nature trails and camps for the general public.
Which of the statements given above is/are correct?
(a) 1 and 3 only
(b) 2 only
(c) 2 and 3 only
(d) 1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (c)

Q11: With reference to ‘Eco-Sensitive Zones’, which of the following statements is/are correct?
1. Eco-Sensitive Zones are the areas that are declared under the Wildlife (Protection) Act, 1972.
2. The purpose of the declaration of Eco-Sensitive Zones is to prohibit all kinds of human activities in those zones except agriculture.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (d)

Q12: With reference to ‘Global Environment Facility’, which of the following statements is/are correct?
(a) It serves as financial mechanism for ‘Convention on Biological Diversity’ and ‘United Nations Framework Convention on Climate Change’
(b) It undertakes scientific research on environmental issues at global level
(c) It is an agency under OECD to facilitate the transfer of technology and funds to underdeveloped countries with specific aim to protect their environment
(d) Both (a) and (b)

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

Q13: Consider the following statements:
1. Animal Welfare Board of India is established under the Environment (Protection) Act, 1986.
2. National Tiger Conservation Authority is a statutory body.
3. National Ganga River Basin Authority is chaired by the Prime Minister.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 2 only
(d) 1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (b)

Q14: Consider the following pairs:
UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year QuestionsWhich of the above pairs is/are correctly matched?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (c)

Q15: Consider the following international agreements:
1. The International Treaty on Plant Genetic Resources for Food and Agriculture
2. The United Nations Convention to Combat Desertification
3. The World Heritage Convention
Which of the above has/have a bearing on the biodiversity?
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (d)

Q16: With reference to the conservation organization called ‘Wetlands International’, which of the following statements is/are correct?
1. It is an intergovernmental organization formed by the countries which are signatories to the Ramsar Convention.
2. It works at the field level to develop and mobilize knowledge, and use the practical experience to advocate for better policies.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (b)

Q17: Consider the following statements regarding ‘Earth Hour’:
1. It is an initiative of UNEP and UNESCO.
2. It is a movement in which the participants switch off the lights for one hour on a certain day every year.
3. It is a movement to raise awareness about climate change and the need to save the planet.
Which of the statements given above is/are correct?
(a) 1 and 3 only
(b) 2 only
(c) 2 and 3 only
(d) 1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (c)

Q18: Other than poaching, what are the possible reasons for the decline in the population of Ganges River Dolphins?
1. Construction of dams and barrages on rivers.
2. Increase in the population of crocodiles in rivers.
3. Getting trapped in fishing nets accidentally.
4. Use of synthetic fertilizers and other agricultural chemicals in crop-fields in the vicinity of rivers.
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (c)

Q19: Consider the following:
1. Bats
2. Bears
3. Rodents
The phenomenon of hibernation can be observed in which of the above kinds of animals?
(a) 1 and 2 only
(b) 2 only
(c) 1, 2 and 3 only
(d) Hibernation cannot be observed in any of the above

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (c)

Q20: If you walk through countryside, you are likely to see some birds stalking alongside the cattle to seize the insects disturbed by their movement through grasses. Which of the following is/are such bird/birds?
1. Painted Stork
2. Common Myna
3. Black-necked Crane
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 2 only
(c) 2 and 3 only
(d) 3 only

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (b)

2013

Q1: Which of the following can be found as pollutants in the drinking water in some parts of India?
1. Arsenic
2. Sorbitol
3. Fluoride
4. Formaldehyde
5. Uranium
Select the correct answer using the codes given below.
(a) 1 and 3 only
(b) 2, 4 and 5 only
(c) 1, 3 and 5 only
(d) 1, 2, 3, 4 and 5

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer
Ans:(c) 1, 3 and 5 only
Q2: Consider the following pairs:
UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year QuestionsWhich of the above pairs is/are correctly matched?
(a) 1 only
(b) 2 and 3 only
(c) 1, 2 and 3
(d) None
UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer
Ans: (a) 
Q3: The most important fishing grounds of the world are found in the regions where
(a) warm and cold atmospheric currents meet
(b) rivers drain out large amounts of freshwater into the sea
(c) warm and cold oceanic currents meet
(d) continental shelf is undulating
UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer
Ans:(c) 

Q4: In the grasslands, trees do not replace the grasses as a part of an ecological succession because of
(a) insects and fungi
(b) limited sunlight and paucity of nutrients
(c) water limits and fire
(d) None of the above

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (c) 

Q5: Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?
(a) Oceans, lakes, grasslands, mangroves
(b) Mangroves, oceans, grasslands, lakes
(c) Mangroves, grasslands, lakes, oceans
(d) Oceans, mangroves, lakes, grasslands

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (c) 

Q6: Consider the following fauna of India
1. Gharial
2. Leatherback turtle
3. Swamp deer
Which of the above is/are endangered?
(a) 1 and 2 only
(b) 3 only
(c) 1, 2 and 3
(d) None

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (c)

All three species - Gharial, Leatherback turtle, and Swamp deer - are considered endangered.

Gharial (Gavialis gangeticus):

  • The Gharial is a critically endangered species of crocodilian found in the rivers of northern India and Nepal.
  • Its population has declined drastically due to habitat loss, hunting, and entanglement in fishing nets.

Leatherback turtle (Dermochelys coriacea):

  • The Leatherback turtle is the largest living turtle species and is classified as vulnerable globally.
  • It faces threats such as habitat loss, poaching for its eggs and meat, and accidental capture in fishing gear.
  • In India, the Leatherback turtle is found in the Andaman and Nicobar Islands and along the coast of Tamil Nadu.

Swamp deer (Rucervus duvaucelii):

  • Also known as Barasingha, the Swamp deer is a vulnerable species found in the Indian subcontinent.
  • It inhabits wetlands and grasslands, and its population has declined due to habitat loss, hunting, and competition with livestock.

Q7: Contour bunding is a method of soil conservation used in
(a) desert margins, liable to strong wind action
(b) low flat plains, close to stream courses, liable to flooding
(c) scrublands, liable to spread of weed growth
(d) None of the above

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (b)

Contour bunding is a method of soil conservation used primarily in areas with undulating or sloping terrain that are prone to soil erosion due to water runoff. The key features of areas where contour bunding is used include:

  • Hilly or undulating terrain: Contour bunding is most effective in areas with gentle to moderate slopes, as it helps to reduce the velocity of water runoff and conserve soil moisture.
  • Areas prone to soil erosion: Regions that experience high rainfall or have soils that are easily eroded benefit from contour bunding, as it helps to prevent soil loss and maintain soil fertility.
  • Agricultural lands: Contour bunding is commonly used in agricultural fields to conserve soil and water, thereby improving crop productivity.

Desert margins liable to strong wind action: Contour bunding is not commonly used in desert areas prone to wind erosion, as it is primarily a method to control water erosion.

Low flat plains close to stream courses, liable to flooding: Contour bunding is not suitable for low-lying, flat plains prone to flooding, as it is designed for sloping lands.

Scrublands, liable to the spread of weed growth: The presence of scrublands or the potential for weed growth is not a determining factor for the use of contour bunding.

Q8: Which of the following is/are unique characteristic/characteristics of equatorial forests?
1. Presence of tall, closely set trees with crowns forming a continuous canopy
2. Co-existence of a large number of species
3. Presence of numerous varieties of epiphytes
Select the correct answer using the codes given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (d)
Equatorial forests, also known as tropical rainforests, have several unique characteristics:

  • Presence of tall, closely set trees with crowns forming a continuous canopy: Equatorial forests are known for their tall trees that grow close to each other, forming a dense, continuous canopy that allows little light to penetrate to the forest floor.
  • Co-existence of a large number of species: Equatorial forests are home to an incredible diversity of plant and animal species. They are considered the most biodiverse terrestrial ecosystems on Earth, with many species co-existing in the same area.
  • Presence of numerous varieties of epiphytes: Epiphytes are plants that grow on other plants, using them for support but not for nutrients. Equatorial forests have a high abundance and diversity of epiphytes, such as orchids, bromeliads, and ferns, which thrive in the humid environment and on the branches of the tall trees.

Q9: Under the Scheduled Tribes and Other Traditional Forest Dwellers (Recognition of Forest Rights) Act, 2006, who shall be the authority to initiate, the process for determining the nature and extent of individual or community forest rights or both?
(a) State Forest Department
(b) District Collector / Deputy Commissioner
(c) Tahsildar / Block Development Officer / Mandal Revenue Officer
(d) Gram Sabha

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (d)

The Forest Rights Act, 2006 was enacted to recognize and vest forest rights in forest-dwelling Scheduled Tribes and other traditional forest dwellers who have been residing in forests for generations. The Act aims to address the historical injustice done to these communities and provide them with a framework for securing their rights to forest land and resources.
Under the Act, the process of determining and granting forest rights begins at the grassroots level with the Gram Sabha. Why the Gram Sabha is the authority to initiate this process:

Decentralization of power:

  • The Forest Rights Act emphasizes the decentralization of power and the active participation of local communities in the recognition and management of forest rights.
  • The Gram Sabha, being a local body comprising all adult members of a village, is best suited to identify and understand the forest rights claims of the community.

Local knowledge and expertise:

  • The Gram Sabha members have intimate knowledge of the local forest area, its resources, and the traditional practices of the forest-dwelling communities.
  • This knowledge is crucial in determining the legitimacy of forest rights claims and ensuring that the rights are granted to the rightful claimants.

Ensuring transparency and accountability:

  • By empowering the Gram Sabha to initiate and conduct the process of determining forest rights, the Act ensures transparency and accountability at the local level.
  • The Gram Sabha is responsible for receiving claims, verifying their authenticity, and passing resolutions on the claims after providing a fair opportunity to all interested parties.

Safeguarding community interests:

  • The Gram Sabha, as a representative body of the village community, is expected to act in the best interests of the forest-dwelling Scheduled Tribes and other traditional forest dwellers.

It serves as a platform for these communities to assert their rights and have a say in the decision-making process.

The State Forest Department is responsible for providing necessary assistance to the Gram Sabha in the recognition and vesting of forest rights.

The District Collector/Deputy Commissioner and the Sub-Divisional Level Committee are involved in the appellate process and in considering and approving the resolutions passed by the Gram Sabha.

The Tahsildar/Block Development Officer/Mandal Revenue Officer may assist in the process by providing records and evidence related to forest rights claims.

However, the primary authority to initiate and carry out the process of determining forest rights lies with the Gram Sabha, as per the provisions of the Forest Rights Act, 2006. This bottom-up approach ensures that the rights recognition process is participatory, inclusive, and sensitive to the needs and concerns of the forest-dwelling communities.

Q10: Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms?
(a) Ecotone
(b) Ecological niche
(c) Habitat
(d) Home range

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (b) 
Ecotone:

  • An ecotone is a transitional area between two adjacent ecological communities or ecosystems, such as the zone between a forest and a grassland.
  • While it does describe a physical space, it does not necessarily include the functional role of organisms within that space.

Ecological niche:

  • An ecological niche refers to the specific role an organism plays in its ecosystem, including its interactions with other organisms and its utilization of resources.
  • It encompasses not only the physical space occupied by the organism (its habitat) but also its functional role within the community.

Habitat:

  • A habitat is the natural environment or physical space in which an organism lives, including the biotic and abiotic factors that support its survival.
  • However, the term "habitat" does not explicitly include the organism's functional role within the community.

Home range:

  • The home range is the area in which an animal lives and travels during its normal activities, such as foraging, mating, and caring for young.
  • Like habitat, it describes the physical space used by an organism but does not encompass its functional role.

Q11: Due to improper/indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste?
1. Beryllium
2. Cadmium
3. Chromium
4. Heptachlor
5. Mercury
6. Lead
7. Plutonium
Select the correct answer using the codes given below.
(a) 1, 3, 4, 6 and 7 only
(b) 1, 2, 3, 5 and 6 only
(c) 2, 4, 5 and 7 only
(d) 1, 2, 3, 4, 5, 6 and 7

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (b) 

Beryllium:

  • Beryllium is a lightweight metal used in computer motherboards and connectors due to its excellent thermal conductivity and electrical insulation properties.
  • When computers are improperly disposed of, beryllium can be released into the environment, posing health risks such as lung damage and berylliosis if inhaled.

Cadmium:

  • Cadmium is used in computer batteries, especially in older nickel-cadmium (NiCd) batteries, and in printed circuit boards.
  • Cadmium is toxic and can accumulate in the environment when e-waste is not properly managed, causing harm to human health and ecosystems.

Chromium:

  • Chromium, particularly hexavalent chromium, is used as a corrosion protector in computer housings and as a hardener for steel parts.
  • Improper disposal of computers can lead to chromium leaching into the environment, which can cause respiratory issues, allergic reactions, and even cancer in humans.

Mercury:

  • Mercury is used in lighting displays (e.g., flat-screen monitors) and computer switches.
  • When e-waste is not properly handled, mercury can be released into the environment, where it can bioaccumulate in ecosystems and cause neurological and developmental issues in humans and wildlife.

Lead:

  • Lead is commonly found in computer monitors (CRTs), printed circuit boards, and batteries.
  • Improper disposal of lead-containing e-waste can contaminate soil and water, leading to lead poisoning, which affects the nervous system, kidneys, and reproductive system.
  • Now, let's discuss why heptachlor and plutonium are not typically associated with computers and e-waste:

Heptachlor:

  • Heptachlor is a pesticide that was widely used in the past for agricultural purposes and termite control.
  • It is not commonly used in the manufacturing of computers or their components.

Plutonium:

  • Plutonium is a radioactive element that is primarily used in nuclear reactors and nuclear weapons.
  • It is not used in the production of computers or their parts.
  • In summary, beryllium, cadmium, chromium, mercury, and lead are substances that can be released into the environment as e-waste due to improper disposal of computers and their components. These substances pose significant health and environmental risks when not handled properly. Heptachlor and plutonium, while dangerous in their own right, are not typically associated with computers or e-waste.

Q12: With reference to food chains in ecosystems, consider the following statements:
1. A food chain illustrates the order in which a chain of organisms feed upon each other.
2. Food chains are found within the populations of a species.
3. A food chain illustrates the numbers of each organism which are eaten by others.
Which of the statements given above is/are correct?
(a) 1 only
(b) 1 and 2 only
(c) 1, 2 and 3
(d) None

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

A food chain illustrates the order in which a chain of organisms feed upon each other.

  • This statement is correct. A food chain represents the linear sequence of organisms through which energy and nutrients pass in an ecosystem, starting from producers (usually plants) and moving up through various consumer levels (herbivores, carnivores, and decomposers).

Food chains are found within the populations of a species.

  • This statement is incorrect. Food chains exist between different species in an ecosystem, not within populations of the same species. A population consists of individuals of the same species living in a particular area at a given time.

A food chain illustrates the numbers of each organism which are eaten by others.

  • This statement is incorrect. A food chain does not typically illustrate the numbers or quantities of each organism consumed by others. Instead, it focuses on the order or sequence in which energy and nutrients are transferred from one trophic level to another. The concept of energy flow and biomass transfer between trophic levels is better represented by ecological pyramids (pyramids of numbers, biomass, or energy).

Q13: Consider the following pairs:
UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year QuestionsWhich of the above pairs is/are correctly matched?
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) None

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (b)

Q14: In which of the following States is lion-tailed macaque found in its natural habitat?
1. Tamil Nadu
2. Kerala
3. Karnataka
4. Andhra Pradesh
Select the correct answer using the codes given below.
(a) 1, 2 and 3 only
(b) 2 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a) 1, 2 and 3 only

Q15: Consider the following:
Star tortoise
Monitor lizard
Pygmy hog
Spider monkey
Which of the above are naturally found in India?
(a) 1, 2 and 3 only
(b) 2 and 3 only
(c) 1 and 4 only
(d) 1, 2, 3 and 4

UPSC Prelims Previous Year Questions (2013-2018): Environment | UPSC Topic Wise Previous Year Questions  View Answer

Ans: (a)

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FAQs on UPSC Prelims Previous Year Questions (2013-2018): Environment - UPSC Topic Wise Previous Year Questions

1. What are the key environmental topics covered in the UPSC Prelims from 2013 to 2018?
Ans.The key environmental topics include biodiversity, climate change, pollution, conservation efforts, sustainable development, and related policies and initiatives that have been relevant during those years.
2. How can I prepare for the Environment section of the UPSC Prelims effectively?
Ans.To prepare effectively, focus on understanding core concepts, current affairs related to the environment, and significant government policies. Regularly practice previous years' questions and take mock tests to enhance your knowledge and speed.
3. What is the significance of biodiversity in the context of UPSC Environment questions?
Ans.Biodiversity is crucial as it contributes to ecosystem stability, provides resources for medicine and agriculture, and supports ecological balance. Questions may focus on conservation strategies and major biodiversity hotspots in India.
4. Which international environmental agreements should I be aware of for the UPSC Prelims?
Ans.Key international agreements include the Paris Agreement on climate change, the Convention on Biological Diversity (CBD), the Ramsar Convention on Wetlands, and the Kyoto Protocol. Understanding these agreements can help in answering related questions.
5. How do I stay updated on current environmental issues for the UPSC exam?
Ans.Staying updated can be achieved by following reliable news sources, government reports, and environmental journals. It is also useful to join online forums and study groups focused on UPSC preparation to discuss current issues.
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UPSC Prelims Previous Year Questions (2013-2018): Environment Notes offer in-depth insights into the specific topic to help you master it with ease. This comprehensive document covers all aspects related to UPSC Prelims Previous Year Questions (2013-2018): Environment. It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation. Practice papers and question papers enable you to assess your progress effectively. Additionally, the paper analysis provides valuable tips for tackling the exam strategically. Access to Toppers' notes gives you an edge in understanding complex concepts. Whether you're a beginner or aiming for advanced proficiency, UPSC Prelims Previous Year Questions (2013-2018): Environment Notes on EduRev are your ultimate resource for success.

UPSC Prelims Previous Year Questions (2013-2018): Environment UPSC

The "UPSC Prelims Previous Year Questions (2013-2018): Environment UPSC Questions" guide is a valuable resource for all aspiring students preparing for the UPSC exam. It focuses on providing a wide range of practice questions to help students gauge their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation. The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level. Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.

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