CBSE Class 10 Social Science (Geography – Contemporary India-II)
Chapter 5: Minerals and Energy Resources
20 Important Questions and Answers
(As per CBSE 2026–27 Syllabus)
Q1. What are minerals? Why are they important for economic development?
Answer:
Minerals are naturally occurring substances found in the earth’s crust that have a definite chemical composition and physical properties. They are essential for industrial and economic development because they provide raw materials for manufacturing industries. Iron ore is used in steel production, copper is used in electrical equipment, and limestone is used in cement industries. Minerals also contribute significantly to employment generation and government revenue. Modern transportation, communication, construction, and energy production depend heavily on minerals. Since minerals take millions of years to form, they are considered exhaustible resources and must be used carefully for sustainable development.
Q2. Explain the mode of occurrence of minerals.
Answer:
Minerals occur in different forms in nature. Some minerals are found in igneous and metamorphic rocks in cracks, crevices, faults, or joints. They may occur as veins and lodes. Certain minerals like coal and petroleum are found in sedimentary rocks. Minerals such as bauxite are formed due to decomposition of surface rocks and are found in residual masses. Some minerals are also found in alluvial deposits called placer deposits, such as gold and tin. Ocean waters and beds contain minerals like common salt, magnesium, and manganese nodules. Thus, minerals occur in various geological formations depending on their origin and formation process.
Q3. Differentiate between ferrous and non-ferrous minerals.
Answer:
Ferrous minerals are those that contain iron as a major component. Examples include iron ore, manganese, and chromite. These minerals form the backbone of metallurgical industries and are essential for steel production. Non-ferrous minerals do not contain iron and include copper, bauxite, lead, zinc, and gold. They are important for electrical, engineering, and chemical industries. Ferrous minerals account for a major share of India’s mineral production value because of their extensive industrial use. Non-ferrous minerals are valued for their conductivity, resistance to corrosion, and lightweight properties. Both types play a crucial role in industrial and economic growth.
Q4. Describe the distribution of iron ore in India.
Answer:
Iron ore is one of the most important minerals in India. The country has abundant reserves of high-grade iron ore. Odisha is the leading producer, with major mines located in the districts of Mayurbhanj and Keonjhar. The Durg-Bastar-Chandrapur belt in Chhattisgarh and Maharashtra is another significant region. Karnataka has rich deposits in Bellary, Chitradurga, and Tumkur districts. Jharkhand also has important iron ore mines in Singhbhum district. Hematite and magnetite are the two main varieties of iron ore found in India. The availability of iron ore has greatly supported the development of the iron and steel industry.
Q5. Why is manganese important? Mention its uses.
Answer:
Manganese is an important ferrous mineral used mainly in the iron and steel industry. It is essential for manufacturing steel because it improves hardness, strength, and durability. Manganese is also used in producing bleaching powder, insecticides, paints, batteries, and chemicals. India has significant manganese deposits in Odisha, Karnataka, Maharashtra, Madhya Pradesh, Andhra Pradesh, and Goa. Although manganese is required in smaller quantities than iron ore, it plays a vital role in industrial production. Its use in alloy-making and chemical industries makes it a valuable mineral resource. Therefore, manganese contributes significantly to industrial and economic development.
Q6. What is bauxite? Why is it important?
Answer:
Bauxite is the principal ore from which aluminium is extracted. It is formed through the decomposition of surface rocks under specific climatic conditions. Aluminium obtained from bauxite is lightweight, strong, and resistant to corrosion. It is widely used in aircraft manufacturing, electrical equipment, automobiles, utensils, and packaging industries. Major bauxite-producing states in India include Odisha, Gujarat, Jharkhand, Maharashtra, and Chhattisgarh. Odisha is the largest producer. Due to its versatility and increasing industrial applications, bauxite is considered one of the most important non-ferrous minerals. Its growing demand has increased its economic significance in India.
Q7. Explain the occurrence and distribution of copper in India.
Answer:
Copper is a non-ferrous mineral known for its excellent electrical conductivity. It is widely used in electrical cables, electronics, telecommunication equipment, and alloy production. Copper reserves in India are limited compared to global standards. The major copper-producing regions are the Balaghat mines in Madhya Pradesh, the Singhbhum district in Jharkhand, and the Khetri mines in Rajasthan. Since copper is highly recyclable and essential for modern industries, its demand continues to increase. Despite limited reserves, copper remains an important mineral resource because of its critical role in electrical and technological development.
Q8. What are the different forms of coal found in India?
Answer:
Coal is found in four major forms based on its carbon content and quality. Anthracite is the highest-quality coal with the highest carbon content and least impurities. Bituminous coal is widely used in industries and power generation. Lignite is a low-grade brown coal with lower carbon content and higher moisture. Peat is the lowest-grade coal, containing high moisture and low heating value. India mainly possesses bituminous coal reserves. Coal is an important source of energy and supports thermal power generation, steel production, and various industrial activities. Therefore, it remains a vital energy resource for the country.
Q9. Describe the distribution of coal in India.
Answer:
India has large coal reserves mainly located in the Gondwana rock formations. The major coal-producing states include Jharkhand, Odisha, Chhattisgarh, West Bengal, Madhya Pradesh, and Telangana. The Jharia, Raniganj, Bokaro, and Korba coalfields are among the most important. Lignite deposits are mainly found in Tamil Nadu, Rajasthan, Gujarat, and Jammu and Kashmir. Coal contributes significantly to India’s energy requirements, particularly in thermal power generation. It is also used in industries such as iron and steel manufacturing. The widespread availability of coal has played a major role in India’s industrial development and energy security.
Q10. Why is petroleum called a versatile fuel?
Answer:
Petroleum is called a versatile fuel because it can be refined into a wide range of useful products. These include petrol, diesel, kerosene, liquefied petroleum gas (LPG), aviation fuel, lubricants, paraffin wax, and petrochemicals. Petroleum serves as a major source of energy for transportation, industries, and households. It is also used as a raw material for manufacturing plastics, synthetic fibers, fertilizers, medicines, and detergents. Major petroleum-producing areas in India include Mumbai High, Gujarat, Assam, and the Krishna-Godavari Basin. Due to its wide range of applications, petroleum plays a crucial role in modern economic development.
Q11. What is natural gas? State its advantages.
Answer:
Natural gas is an important fossil fuel found alongside petroleum deposits. It consists mainly of methane and is considered an environmentally friendly fuel because it burns cleanly with fewer pollutants. Natural gas is used in power generation, industries, transport, and households. It is supplied through pipelines and compressed as CNG for vehicles. Major natural gas reserves in India are found in Mumbai High, the Krishna-Godavari Basin, Assam, and Gujarat. Natural gas reduces dependence on coal and petroleum while causing less environmental damage. Therefore, it is often regarded as the fuel of the future.
Q12. What are conventional sources of energy?
Answer:
Conventional sources of energy are those that have been used for a long time and are widely available. They include coal, petroleum, natural gas, and electricity generated from thermal and hydel power plants. These sources have played a major role in industrialization and economic growth. However, most conventional energy resources are exhaustible and contribute to environmental pollution. Their excessive use has led to concerns about resource depletion and climate change. Despite these challenges, conventional energy sources continue to meet a large share of India’s energy requirements. Efficient use and conservation of these resources are therefore essential.
Q13. What is hydel power? Mention its advantages.
Answer:
Hydel power, or hydroelectric power, is electricity generated using the energy of flowing or falling water. Large dams and reservoirs are constructed to store water, which drives turbines connected to generators. Hydel power is a renewable and non-polluting source of energy. It reduces dependence on fossil fuels and helps conserve non-renewable resources. Major hydroelectric projects in India include Bhakra Nangal, Hirakud, and Tehri. Hydel power also supports irrigation and flood control. Although initial construction costs are high, its long-term benefits and environmental advantages make it an important source of sustainable energy.
Q14. What are non-conventional sources of energy?
Answer:
Non-conventional sources of energy are renewable energy resources that are naturally replenished and environmentally friendly. These include solar energy, wind energy, tidal energy, geothermal energy, and biogas. Unlike fossil fuels, they do not get exhausted and produce minimal pollution. India has great potential for developing renewable energy due to its favorable climatic conditions. Solar energy is widely used in sunny regions, while wind energy is important in coastal areas. Non-conventional energy sources help reduce greenhouse gas emissions and dependence on fossil fuels. They are considered essential for achieving sustainable development and energy security.
Q15. Explain the importance of solar energy in India.
Answer:
Solar energy is one of the most promising renewable energy sources in India. The country receives abundant sunlight throughout the year, making solar power highly suitable. Solar energy is used for generating electricity, heating water, cooking, and lighting homes. It is particularly useful in remote and rural areas where conventional electricity supply is limited. States such as Rajasthan and Gujarat have large solar energy projects. Solar power reduces dependence on fossil fuels and helps control environmental pollution. As technology advances and costs decrease, solar energy is becoming an increasingly important component of India’s sustainable energy strategy.
Q16. How is wind energy generated? Name major wind power states.
Answer:
Wind energy is generated by using wind turbines that convert the kinetic energy of moving air into electricity. Wind farms are established in areas with strong and consistent winds. India is among the leading producers of wind energy in the world. Major wind power-producing states include Tamil Nadu, Gujarat, Maharashtra, Karnataka, Rajasthan, and Andhra Pradesh. Wind energy is renewable, pollution-free, and cost-effective in the long run. It helps reduce the use of fossil fuels and lowers greenhouse gas emissions. Therefore, wind energy plays an important role in promoting sustainable and clean energy development.
Q17. What is biogas? Discuss its advantages.
Answer:
Biogas is a renewable source of energy produced through the decomposition of organic waste such as animal dung, agricultural residues, and kitchen waste in the absence of oxygen. The gas mainly contains methane, which can be used as fuel for cooking, lighting, and electricity generation. Biogas plants are commonly found in rural areas. Biogas is environmentally friendly because it reduces waste and pollution. The residue left after gas production can be used as organic manure. It also decreases dependence on firewood and fossil fuels. Thus, biogas contributes to sustainable rural development and environmental conservation.
Q18. Why is energy conservation important?
Answer:
Energy conservation is important because energy resources, especially fossil fuels, are limited and exhaustible. Rapid industrialization, urbanization, and population growth have increased energy demand significantly. Conserving energy helps reduce resource depletion and environmental pollution. It also lowers energy costs and improves energy security. Simple measures such as using energy-efficient appliances, switching off unused electrical devices, and promoting renewable energy can save substantial amounts of energy. Conservation ensures that future generations have access to essential energy resources. Therefore, responsible energy use is necessary for sustainable development and environmental protection.
Q19. What are the environmental impacts of mining?
Answer:
Mining has several environmental impacts. It leads to land degradation, deforestation, and soil erosion. Mining activities generate dust, noise, and water pollution, affecting nearby ecosystems and human health. Open-cast mining often leaves large pits and waste heaps that damage the landscape. Disposal of mining waste can contaminate rivers and groundwater. Wildlife habitats may also be destroyed due to mining operations. To minimize these impacts, proper environmental management, afforestation, land reclamation, and scientific mining methods should be adopted. Sustainable mining practices are essential for balancing economic development with environmental conservation.
Q20. Suggest measures for the conservation of minerals and energy resources.
Answer:
Minerals and energy resources can be conserved through efficient and planned utilization. Recycling and reusing metals reduce the need for fresh mining. Modern technology should be used to minimize wastage during extraction and processing. Energy-efficient machines and appliances help save energy. Public awareness about conservation should be promoted. Greater use of renewable energy sources such as solar, wind, and biogas can reduce dependence on fossil fuels. Sustainable mining practices and strict environmental regulations should be implemented. These measures help preserve valuable resources, protect the environment, and ensure availability for future generations.