Ans: (b)
(A) Ferrous matches with (IV) Cobalt, as ferrous materials are related to iron and cobalt is a metal used in various alloys.
(B) Non-Ferrous matches with (III) Bauxite, since bauxite is a non-ferrous ore primarily used to produce aluminum.
(C) Non-Metallic matches with (II) Granite, because granite is a type of rock and not a metal.
(D) Energy matches with (I) Coal, as coal is a major source of energy.
Ans: (d)
Nickel is considered a ferrous metal because it is often used in the production of alloys with iron, which enhances the strength and resistance of steel. In contrast, copper and tin are non-ferrous metals, and bauxite is an ore of aluminum, not a metal itself.
Q3: Read the given case and answer the questions that follow: (2023)
CONSERVATION OF ENERGY RESOURCES
Energy is a basic requirement for economic development. Every sector of the national economy - agriculture, industry, transport, commercial and domestic - needs inputs of energy. The economic development plans implemented since independence necessarily required increasing amounts of energy to remain operational. As a result, consumption of energy In all forms has been steadily rising all over the country. In this background, there is an urgent need to develop a sustainable path of energy development. Promotion of energy conservation and increased use of renewable energy sources are the twin planks of sustainable energy. India is presently one of the least energy efficient countries in the world. We have to adopt a cautious approach for the judicious use of our limited energy resources. For example, as concerned citizens we can do our bit by using public transport systems instead of individual vehicles; switching off electricity when not in use, using power-saving devices and using non conventional sources of energy. At last "Energy Saved is energy produced”.
(i) Why is sustainable energy a key to sustainable development?
(ii) Why is consumption of energy rising in all over India?
(iii) Explain 'Energy saved is energy produced.’
Ans:
(i) Sustainable energy is a key to sustainable development, as sustainability demands that resource reserves including exhaustible, natural and environmental resources, be maintained.
(ii) After getting independence development of all sectors like agriculture, industry, transport, domestic needs etc. necessarily required to remain in operation, hence consumption of energy in all forms has increased all over India.
(iii) Energy saved is energy produced. We cannot keep on producing non-renewable energy like petrol, diesel and electricity. So the need of the hour is the better utilisation of existing resources. We have to adopt cautions approach for the judicious use of our limited energy resources.
Ans:
Q5: "Minerals occur in various forms". Support this statement with examples. (2020)
Ans:
Q6: "Minerals are an indispensable part of our lives". Support this statement with examples. (2020)
Ans:
Q7: Differentiate between anthracite and bituminous coal on the basis of quality. (2020 C)
Ans:
Q8: In which of the following states is Kalpakkam nuclear power plant located ? (2020)
(a) Gujarat
(b) Odisha
(c) Kerala
(d) Tamil Nadu
Ans: (d)
The Kalpakkam nuclear power plant is located in Tamil Nadu, near the town of Kalpakkam, which is close to Chennai. This plant is significant as it contributes to India's energy needs by generating electricity through nuclear power.
Q9: In which of the following States is Narora Nuclear Power Plant located? (2020)
(a) Karnataka
(b) Kerala
(c) Tamil Nadu
(d) Uttar Pradesh
Ans: (d)
The Narora Nuclear Power Plant is located in Uttar Pradesh, near the town of Narora, which is about 200 kilometers from Delhi. This plant plays an important role in generating nuclear energy to meet the electricity demands of the region.
Q10: Fill in the blank: ________ is well known for effective use of wind energy in Rajasthan. (2020)
Ans: Nagarcoiland Jaisalme are well known for the effective use of wind energy in Rajasthan.
Q11: Suggest any one way to enhance the use of natural gas in India. (2020)
Ans: Use of natural gas:
Making people aware about the importance of using this clean energy resources because this gas is considered environment friendly.
Q12: Fill in the blanks: 'Gobar gas plants’ provide twin benefits to the farmers in the form of_______and________ (2020)
Ans: 'Gobar gas plants' provide twin benefits to the farmers in the form of energy and manure.
Q13: Suggest any one way to maximize the use of nuclear energy in the field of medicine. (2020)
Ans: Nuclear medicine use radio-active substances, mostly to diagnose cancer as well as cardiac and other diseases.
Ans: (d)
The Narora Nuclear Power Plant is located in the state of Uttar Pradesh in India. It is situated on the banks of the Ganges River in the Bulandshahr district. This plant is one of India's key nuclear power facilities, generating electricity through nuclear energy.
Thus, the correct answer is (d) Uttar Pradesh.
Q15: “India has fairly rich and varied mineral resources across different regions”. Support the statement with examples. (CBSE 2019)
OR
“Minerals occur in various forms.” Support this statement with examples. (CBSE 2019)
Ans: (1) Minerals occur in the cracks, crevices, faults or joints in igneous rocks and metamorphic rocks in the form of small occurrences of veins and large occurrences called lodes. Tin and zinc are obtained from veins and lodes.
(2) Sedimentary Rocks are found in nodes and layers. Minerals like gypsum, coal, iron ore are formed.
(3) Minerals are also formed by decomposition of surface rocks, and the removal of soluble constituents, leaving a residual mass of weathered material containing ores. For example, bauxite
Q16: ‘Energy saved is energy produced.’ Assess the statement. (CBSE 2019, 17)
Ans: This statement can be supported in the following ways:
(1) Promotion of energy conservation and increased use of renewable energy sources is an important measure to save resources for the upcoming generations.
(2) A judicious use in using our limited energy resources is of utmost significance to encourage development without any threat to survival in the future generations.
(3) Public transport systems can help save fuel and other important energy resources. Fuel will last for a longer time.
(4) Using power-saving devices and using nonconventional sources of energy helps in preventing excessive usage of conventional energy resources.
Ans:
Q18: Describe any three characteristics of the Durg-Bastar-Chandrapur iron-ore belt in India. (AI 2017)
Ans:
Q19: Describe any three characteristics of the 'Odisha-Jharkhand belt' of iron ore in India. (Delhi 2017)
Ans:
Q20: Why is it necessary to conserve mineral resources? Explain any four ways to conserve mineral resources. (AI2017)
Ans: It is necessary to conserve mineral resources because they are limited in availability and the process of mineral formation is slow. Additionally, minerals are non-renewable and exhaustible.
Four ways to conserve mineral resources are:
1. Using minerals in a planned and sustainable manner.
2. Evolving improved technology to allow the use of low-grade ore at a low cost.
3. Practicing recycling of minerals.
4. Using alternative renewable substitutes.
Q21: 'Energy saved is energy produced.’ Assess the statement. (2017)
Ans: The statement "Energy saved is energy produced" emphasizes the importance of conserving energy. By reducing energy wastage and using energy-efficient practices, we can save energy and reduce the need for additional energy production. This approach is beneficial for the environment as it reduces the consumption of fossil fuels and decreases greenhouse gas emissions.
Q22: Why should we use renewable energy resources? Explain with arguments. (Foreign 2017)
Ans: There are several reasons why we should use renewable energy resources:
1. Non-renewable resources are limited and will eventually get exhausted. In contrast, renewable energy resources such as solar power and wind energy are inexhaustible, making them a sustainable choice for long-term energy needs.
2. The depletion of non-renewable resources like coal and petroleum has taken millions of years to occur. By using renewable energy resources, we can avoid further depletion and preserve these non-renewable resources for future generations.
3. Fossil fuels, which are non-renewable resources, contribute to pollution and environmental degradation. Renewable energy sources, on the other hand, are cleaner and emit fewer greenhouse gases, thus mitigating the impact of climate change.
4. The cost of extracting and using non-renewable resources is increasing as these resources become harder to find. In contrast, the cost of renewable energy technologies, such as solar panels and wind turbines, has been decreasing over time. Investing in renewable energy can help reduce energy costs in the long run.
Q23: Why is energy needed? Write one reason. (CBSE 2017)
Ans: Energy is required for all kinds of activities like cooking, lighting and heating, propelling vehicles and enabling smooth working of machinery in industries.
Q24: “Natural gas is an important source of energy.” Support the statement. (CBSE 2017)
Ans: Natural gas is an important source of energy because:
(1) It is an industrial raw material in the petrochemical industry.
(2) It helps build fertiliser plants and encourages the use of fertilisers. It can boost agricultural production.
(3) It can be easily transported through pipelines
Q25: Which state is the largest producer of manganese in India? Mention any two uses of manganese. (CBSE 2017)
Ans: The nation's top producer of manganese is Madhya Pradesh.
(1) Manganese manufactures steel and ferro-manganese alloy. Nearly 10 kgs of manganese is used in manufacturing one tonne of steel.
(2) It is used in the production of bleaching powder, insecticides and paints
Q26: “Minerals are an indispensable part of our lives.” Support the statement with examples. (CBSE 2017)
Ans: (1) Minerals are used to create or produce almost everything we use everyday. This includes our technology, equipment etc., which are made of steel, silicon, aluminium, copper, gold, silver. Needles, Utensils, Clothes, Jewellery, and containers are all made of minerals.
(2) Transportation was made possible because of minerals. The railway lines and tarmac (paving) of the roads, cars, buses, trains, airplanes are manufactured from minerals.
(3) Even the food that we eat contains minerals. Minerals are produced when we digest it and even when we excrete it.
Q27: “There is a pressing need for using renewable energy sources in India.” Justify the statement. (CBSE 2017)
Ans: There is a pressing need to use renewable energy resources because:
(1) The growing consumption of energy has resulted in the country becoming increasingly dependent on fossil fuels such as coal, oil and gas.
(2) The rising prices of oil and gas and their potential shortages have raised uncertainties about the security of energy supply in future.
(3) It has serious repercussions on the growth of the national economy.
(4) The increasing use of fossil fuels also causes serious environmental problems.
(5) Non-renewable energy resources take millions of years to regenerate.
Ans: The varied colours, hardness, crystal forms, lustre, and density found in minerals are due to their chemical composition and the parameters such as temperature, pressure, rate of cooling, etc., present during their formation.
Q29: How is iron-ore transported from Kudremukh mines to a port near Mangaluru? (CBSE 2016)
Ans: Iron ore is transported from Kudremukh mines to a port near Mangaluru as slurry through pipelines.
Q30: Why should the use of cattle cake as fuel be discouraged? (Al 2016)
Ans: The use of cattle cake as fuel should be discouraged because it creates pollution and by burning it, a valuable manure resource is destroyed, which could otherwise improve soil fertility.
Q31: How are 'Gobar Gas Plants' beneficial to the farmers? (CBSE 2016)
Ans: 'Gobar Gas Plants' are beneficial to the farmers in two ways. Firstly, they provide a clean fuel for domestic cooking and lighting. Secondly, they produce high-quality manure that can be used to enhance soil fertility.
Q32: "India is an important iron and steel producing country in the world. Yet we are not able to perform to our full potential." Suggest and explain any three measures to reach our full potential. (Foreign 2016)
Ans:
Q33: 'Consumption of energy in all forms has been rising all over the country. There is an urgent need to develop a sustainable path of energy development and energy saving.' Suggest and explain any three measures to solve this burning problem. (AI 2016)
Ans:
Q34: "There is a pressing need to use renewable energy resources." Justify the statement with suitable arguments. (AI 2016)
Ans:
Q35: Which minerals are used to obtain nuclear energy? Name all the six nuclear power stations of India. (AI 2016)
Ans:
Q36: Explain the importance of conservation of minerals. Highlight any three measures to conserve them. (AI2016)
Ans: Conservation of minerals is important for the following reasons:
1. Minerals are the backbone of the economy and are essential for various industries.
2. The total volume of workable mineral deposits is very limited, representing only 1% of the Earth's crust.
3. Mineral resources are being consumed at a rapid rate, while the geological processes of mineral formation are slow. This means that the rate of consumption far exceeds the rate of replenishment.
Three measures to conserve minerals are:
1. Using minerals in a sustainable manner by planning their extraction and usage.
2. Developing improved technologies that allow the use of low-grade ore at a lower cost.
3. Promoting recycling and reuse of minerals to reduce the demand for new extraction.
Q37: Highlight the importance of petroleum. Explain the occurrence of petroleum in India. (CBSE 2016)
Ans: The importance of petroleum can be highlighted as follows:
1. Petroleum is a major source of energy in India, providing fuel for heat, lighting, and transportation.
2. It serves as a lubricant for machinery, ensuring their smooth operation.
3. Petroleum is a crucial raw material for various manufacturing industries.
4. Petroleum refineries play a significant role in supporting industries such as synthetic, textile, fertilizer, and chemical industries.
In India, petroleum occurs in the following ways:
1. Most petroleum reserves in India are associated with anticlines and fault traps.
2. In regions of folding anticlines or domes, petroleum is trapped in the crust of the upfold.
3. Petroleum is also found in fault traps between porous and non-porous rocks.
Q38: Suggest and explain any three measures through which every citizen can help to conserve energy resources. (CBSE 2016)
Ans: Three ways in which citizens can help conserve energy resources are:
(1) Reduction in usage of individual vehicles.
(2) Minimisation of electricity usage.
(3) Reduction in usage of water resources
Ans: Aluminium metal has great importance because it combines the properties of great strength, lightness, malleability, and conductivity.
Q40: "Natural gas is considered an environment-friendly fuel." Explain the statement in two points. (AI 2015)
Ans:
Q41: How is geothermal energy produced? Explain. (AI 2015)
Ans:
Q42: How can biogas solve the energy problem mainly in rural India? Give your suggestions. (AI 2015)
Ans:
Q43: Describe any three features of ferrous minerals found in India. (Foreign 2015)
Ans:
Q44: How is the mining activity injurious to the health of the miners and the environment? Explain. (Delhi 2015)
Ans:
Q45: How can solar energy solve the energy problem to some extent in India? Give your opinion. (CBSE 2015)
Ans: Solar energy can contribute to solving the energy problem in India in the following ways:
1. India receives abundant sunlight throughout the year, especially in rural and remote areas. Harnessing solar energy through solar panels and solar power plants can provide a reliable source of electricity in these areas.
2. Establishing solar plants in rural and remote areas can help minimize the dependence on traditional sources of energy such as firewood and dung cakes. This, in turn, contributes to environmental conservation and reduces indoor air pollution.
3. Solar energy can provide electricity for various applications, including lighting, cooking, and powering electronic devices. By utilizing solar energy, India can reduce its reliance on fossil fuels and decrease greenhouse gas emissions, thereby mitigating climate change.
64 videos|445 docs|87 tests
|
$1. What are the major types of minerals found in India ? |
$2. How is coal extracted and what are its main uses ? |
$3. What are the renewable energy resources available in India ? |
$4. What is the significance of mineral resources for the economy of India ? |
$5. How can the conservation of mineral resources be achieved ? |
|
Explore Courses for Class 10 exam
|