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Test: Environmental Issues - 1 (Old NCERT) - JAMB MCQ


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25 Questions MCQ Test - Test: Environmental Issues - 1 (Old NCERT)

Test: Environmental Issues - 1 (Old NCERT) for JAMB 2024 is part of JAMB preparation. The Test: Environmental Issues - 1 (Old NCERT) questions and answers have been prepared according to the JAMB exam syllabus.The Test: Environmental Issues - 1 (Old NCERT) MCQs are made for JAMB 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Environmental Issues - 1 (Old NCERT) below.
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Test: Environmental Issues - 1 (Old NCERT) - Question 1

Air pollution is:
i. 5th leading cause of deaths in Indian sub-continent.
ii. ranked among top 10 killers in the world.
iii. 7th most dangerous killer in south Asia.  

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 1

Air pollution is the fifth leading cause of death in India, with 620,000 premature deaths in 2010. It comes after indoor air pollution, tobacco smoking, high blood pressure, childhood underweight, low nutritional status, and alcohol use. World Health Organisation, says air pollution has become one of the top 10 killers in the world. GBD tracks deaths and illnesses from all causes across the world.

Test: Environmental Issues - 1 (Old NCERT) - Question 2

The expanded form of DDT is:

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 2

The expanded form of DDT is dichloro diphenyl trichloroethane. This is the first modern insecticide in the year 1940's.

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Test: Environmental Issues - 1 (Old NCERT) - Question 3

In normal adults, the enzyme which catalyses conversion of MHb into Hb is :

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 3

In normal adults, the enzyme which catalyses conversion of MHb into Hb is MHb reductase enzyme. MHb is inactive forms that is converted into Hb that carries oxygen in blood.

Test: Environmental Issues - 1 (Old NCERT) - Question 4

The noise level that can cause permanent impairment of hearing ability of human beings :

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 4

Noise pollution is a kind of air pollution that may cause permanent impairment of hearing ability of human beings if its loudness is equal to or more than 150 dB.

Test: Environmental Issues - 1 (Old NCERT) - Question 5

An amendment in Air (Prevention and control of Pollution) Act 1981 included a new pollutant named :

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 5

As per supreme court guidelines 2005, a loud speaker or a public address system are not permitted at night between 10:00 pm to 6:00 am except in closed premises for communication within, like auditorium, conference room, community halls and banquet halls. Under the Environment (Protection) Act, 1986, rules for noise pollution level are framed for ambient air quality standards of noise for different areas/ zones.

Test: Environmental Issues - 1 (Old NCERT) - Question 6

Match the following:  

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 6

Nitrogen oxides is released by lightening, fluorides from coal burning, PCBs from burning plastics and chlorofluorocarbons from jet aeroplanes emissions.

Test: Environmental Issues - 1 (Old NCERT) - Question 7

The neurotoxic form of Mercury which can be directly absorbed by fishes :

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 7

Methyl mercury is the neurotoxic form of Mercury, which can be directly absorbed by fishes. From fishes they enter to food chain and to human body causing bio-magnification.

Test: Environmental Issues - 1 (Old NCERT) - Question 8

Oil spills prevent oxygenation of water so they are :

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 8

Oil splits over the water bodies prevents the oxygenation of water. The dissolved oxygen in water is used by aquatic organisms for respiration. It is physical pollutant.

Test: Environmental Issues - 1 (Old NCERT) - Question 9

That species which is found in highest concentration within a polluted water reservoir is called :

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 9

A number of organisms grow in polluted water. The species whose concentration is highest in polluted water is called as index species as this species indicate the presence of particular kinds of pollutant in water.

Test: Environmental Issues - 1 (Old NCERT) - Question 10

Which of the following is a WRONG matched pair?

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 10

Dystrophic lake have too low accumulation of dissolved nutrients to support abundant plant life so, they have very low productivity.

Test: Environmental Issues - 1 (Old NCERT) - Question 11

Read the following statements:
i. Based on emission, there are point and diffusion sources of water pollution.
ii. Fertilisers are example of point sources of water pollution.
iii. Industrial discharge pipes are examples of diffusion sources of water pollution.

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 11

On the basis of emission of pollutants in water bodies, there are point and diffusion sources of water pollution. Fertilizers are example of diffusion sources of water and industrial discharge pipes are example of point source of water pollution. So, statement i is correct only.

Test: Environmental Issues - 1 (Old NCERT) - Question 12

Low BOD will be characteristic feature of :

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 12

Low biological oxygen demand (BOD) will be characteristic feature of an oligotrophic lake. In oligotrophic lake concentration of nutrients are very low so a few organisms only survive and BOD is comparatively low.

Test: Environmental Issues - 1 (Old NCERT) - Question 13

Which one of the following is a WRONG statement?

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 13

Ozone is of two type one is found is stratosphere(upper part of atmosphere) and called as stratospheric ozone (good ozone) it prevents harmful UV rays to reach us. Another is found in troposphere(lower part of atmosphere) and called as tropospheric ozone (bad ozone) its is formed by human activities and harmful for living organisms.

Test: Environmental Issues - 1 (Old NCERT) - Question 14

All are biofuels except:

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 14

Biopetrol is fuel having characteristic similar to petrol but is produced from palmitic acid.So, it is not a biofuel. Biodiesel, marsh gas and ethanol are biofuels produced by action of microbes.

Test: Environmental Issues - 1 (Old NCERT) - Question 15

Mass destruction of aquatic life will be caused by:

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 15

Mass destruction of aquatic life will be caused by broad spectrum pesticides. Broad spectrum pesticides are effective against large number of pests whether useful or harmful. These pesticides reaches to water bodies along with rain water.

Test: Environmental Issues - 1 (Old NCERT) - Question 16

According to Central Pollution Control Board (CPCB), which particulate size in diameter (in micrometers) of the air pollutants is responsible for greatest harm to human health?

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 16

Particulate air pollutant like soot, fly ash, dust of various types, pollens, spores, fur, hair can be differentiated as settable and suspended particulate matter pollutant. Their effect on the environment depends upon the size of the particles. According to CPCB, particulate matter of 2.5 micrometres or less in diameter are responsible for causing great harm to human health. They are inhaled deep into the respiratory tract upto lungs and causes respiratory problems and may even lead to death

Test: Environmental Issues - 1 (Old NCERT) - Question 17

The biological amplification of DDT in the various trophic levels is known as

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 17

The biological amplification of DDT in the various trophic levels is known as biomagnifications. The harmful non-biodegradable chemicals accumulate at each trophic level of a food chain.

Test: Environmental Issues - 1 (Old NCERT) - Question 18

Spraying of DDT produces pollution of

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 18

Spraying of DDT produces pollution of air, water and soil. DDT is used as pesticides in agricultural field. It is non-biodegradable and reach to water bodies to pollute it. Some DDT also remains present in air as mist.

Test: Environmental Issues - 1 (Old NCERT) - Question 19

A gas produced by paddy fields and involved in global warming is

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 19

Anaerobic decomposition of plants in water produces methane gas in paddy field. This gas is involved in global warming as methane is a green house gas beside carbon dioxide.

Test: Environmental Issues - 1 (Old NCERT) - Question 20

Which one is MOST toxic?

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 20

Out of the given gases carbon monoxide is the most toxic gas as it combine with hemoglobin present in blood and reduce the oxygen carrying capacity of blood.

Test: Environmental Issues - 1 (Old NCERT) - Question 21

DDT is a

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 21

DDT is a non-biodegradable pollutant used as pesticides in agricultural field. It pollutes the air, water and soil if used in form of spray.

Test: Environmental Issues - 1 (Old NCERT) - Question 22

As per U.S. greenhouse gas emissions report which of the following accounted for the second largest percentage of greenhouse gases?

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 22

According to U.S. greenhouse gas emissions report methane (CH4) accounted of the second largest percentage of greenhouse gases after Chlorofluorocarbon (CFCs).

Test: Environmental Issues - 1 (Old NCERT) - Question 23

Which of the following will be able to cope with greenhouse effect?

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 23

Greenhouse effect causes increase in temperature of earth. Homeotherms can tolerate high temperature. So, homeotherms will be able to cope with the effect of green house effect.

Test: Environmental Issues - 1 (Old NCERT) - Question 24

Earth is protected from ultra-violet radiations by means of

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 24

Earth is protected from ultra-violet radiations by means of ozone layer. Ozone layers are present in stratosphere of atmosphere that absorbs the UV radiations and protect us from its harmful effects.

Test: Environmental Issues - 1 (Old NCERT) - Question 25

Ozone depletion shall cause higher incidence of

Detailed Solution for Test: Environmental Issues - 1 (Old NCERT) - Question 25

Ozone depletion shall cause higher incidence of skin cancer, cataract and decreased immunity.

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