Chapter 5: Minerals and Energy Resources Long Questions | geography Class 10 CBSE

ByteNotes

Chapter 5: Minerals and Energy Resources Long Questions | geography Class 10 CBSE | ByteNotes.in

Long Answer

Medium difficulty • Structured explanation

Medium

Question 1

Long Form

Analyse the distribution of iron ore in India with reference to the four major iron ore belts and the significance of each belt.

The Odisha-Jharkhand belt contains high-grade hematite ore in Badampahar mines (Mayurbhanj and Kendujhar, Odisha) and Gua and Noamundi mines in Singbhum, Jharkhand.
The Durg-Bastar-Chandrapur belt in Chhattisgarh has the Bailadila hills with 14 deposits of super high-grade hematite; the ore has the best physical properties for steel making and is exported to Japan and South Korea via Vishakhapatnam port.
The Ballari-Chitradurga-Chikkamagaluru-Tumakuru belt in Karnataka includes the Kudremukh mines (100% export unit), one of the largest deposits in the world, transporting ore as slurry via pipeline to Mangaluru.
The Maharashtra-Goa belt includes Goa and Ratnagiri district; though ore quality is lower, it is efficiently exploited and exported through Marmagao port.
In 2018–19, 97% of India's iron ore production came from Odisha, Chhattisgarh, Karnataka, and Jharkhand, reflecting the concentration of production in these four belts.

ByteNotes

Long Answer

Hard difficulty • Structured explanation

Hard

Question 2

Long Form

Compare the different modes of occurrence of minerals in nature, explaining which type yields metallic minerals and which yields energy minerals.

Minerals in igneous and metamorphic rocks occur in veins (smaller) and lodes (larger) in cracks and crevices, formed by cooling of molten/gaseous minerals forced upward — yielding metallic minerals like tin, copper, zinc, and lead.
In sedimentary rocks, minerals occur in beds or layers through deposition and concentration under heat and pressure — yielding coal, iron ore, gypsum, potash salt, and sodium salt.
Weathering and decomposition of surface rocks produces residual masses containing ores like bauxite, formed by removal of soluble constituents.
Placer deposits in valley floors and hill bases contain water-resistant minerals like gold, silver, tin, and platinum; ocean waters yield common salt, magnesium, and bromine, while ocean beds are rich in manganese nodules.
Each mode of occurrence is determined by the geological structure and processes involved, explaining why the peninsular region is rich in metallic and coal minerals while the Indo-Gangetic plains are largely devoid of economic minerals.

ByteNotes

Long Answer

Medium difficulty • Structured explanation

Medium

Question 3

Long Form

Describe the distribution of coal in India, discussing the significance of Gondwana coalfields versus tertiary coal deposits.

India has coal deposits of two geological ages: Gondwana (about 200 million years old) and Tertiary (about 55 million years old); Gondwana coal is the major source of metallurgical coal.
Gondwana coalfields are located in the Damodar Valley (West Bengal and Jharkhand), with important fields at Jharia, Raniganj, and Bokaro; the Godavari, Mahanadi, Son, and Wardha valleys also contain coal deposits.
Tertiary coals are found in the northeastern states of Meghalaya, Assam, Arunachal Pradesh, and Nagaland.
Gondwana coal is far more significant as it contains metallurgical-grade coal essential for the iron and steel industry; Tertiary coals are lower-quality and of regional importance.
Coal is a bulky material that loses weight on use; therefore heavy industries and thermal power stations are located near coalfields to minimise transportation costs, which is why the Damodar Valley region hosts major industries.

ByteNotes

Long Answer

Hard difficulty • Structured explanation

Hard

Question 4

Long Form

Explain the significance of non-conventional energy sources in addressing India's energy security, environment, and rural development challenges.

Rising prices of oil and gas and their potential shortages have raised uncertainties about energy supply security, necessitating the development of renewable alternatives such as solar, wind, tidal, geothermal, and biogas.
India's tropical location gives it enormous solar energy potential; photovoltaic technology is fast becoming popular in rural and remote areas, reducing dependence on firewood and dung cakes and helping in environmental conservation.
Wind energy has a large potential — the largest wind farm cluster is in Tamil Nadu (Nagarcoil to Madurai), with other states like Gujarat, Maharashtra, and Karnataka also contributing.
Biogas (produced from organic waste in 'Gobar gas plants') provides rural households with both energy and improved quality of manure, reducing tree felling and the use of cow dung as fuel.
Non-conventional energy sources collectively address environmental degradation caused by fossil fuels, support rural energy needs, and provide a sustainable pathway for India's economic development without depleting finite resources.

ByteNotes

Long Answer

Hard difficulty • Structured explanation

Hard

Question 5

Long Form

Analyse why India's mineral resources are unevenly distributed across different regions and what geological factors explain this pattern.

India's mineral distribution is largely determined by geological structure: peninsular rocks (Deccan plateau) contain most reserves of coal, metallic minerals, mica, and many non-metallic minerals due to their ancient crystalline and sedimentary geological formations.
Sedimentary rocks on the western and eastern flanks of the peninsula — in Gujarat and Assam — have most of the petroleum deposits, as petroleum is associated with anticlines and fault traps in tertiary-age formations.
Rajasthan, sharing rock systems with the peninsula, has reserves of many non-ferrous minerals including copper (Khetri mines).
The vast alluvial plains of north India are almost devoid of economic minerals because alluvial deposits formed by river sedimentation do not contain concentrated mineral ores.
These variations exist due to differences in geological structure, geological processes (igneous activity, sedimentation, weathering), and the time involved in mineral formation — reinforcing that mineral distribution is a product of geological history, not random chance.

ByteNotes

Long Answer

Medium difficulty • Structured explanation

Medium

Question 6

Long Form

Discuss the role of petroleum and natural gas as energy resources in India, covering their occurrence, major fields, and infrastructure.

Petroleum is the next major energy source after coal in India; it provides fuel for heating and lighting, lubricants for machinery, and raw materials for synthetic textiles, fertilisers, and chemical industries — making petroleum refineries a 'nodal industry'.
Petroleum occurs in anticlines and fault traps in tertiary-age rock formations; gas, being lighter, usually occurs above the oil in the same geological formations.
Mumbai High, Gujarat (Ankeleshwar as the most important field), and Assam (the oldest oil-producing state with Digboi, Naharkatiya, and Moran-Hugrijan) are major petroleum-producing areas.
Natural gas is found with petroleum deposits and is used for electricity generation, industrial heating, as CNG for transport and PNG for cooking; major reserves are in Mumbai High, the Cambay basin, and the Krishna-Godavari basin.
The HVJ pipeline (1,700 km, built by GAIL) linked Mumbai High with fertilizer and power complexes; India's gas pipeline network has grown to 18,500 km with plans to reach 34,000 km as a national Gas Grid.

ByteNotes

Long Answer

Hard difficulty • Structured explanation

Hard

Question 7

Long Form

Evaluate the environmental and social impacts of mining activities in India and suggest measures for making mining more sustainable.

Mining creates significant health hazards for miners: dust and noxious fumes lead to pulmonary diseases, while risks of roof collapse, inundation, and mine fires are constant threats.
Environmental degradation from mining includes contamination of water sources in mining regions and land/soil degradation due to dumping of waste and slurry, which also increases stream and river pollution.
Rat-Hole mining in Meghalaya, practiced by families in long narrow tunnels, was declared illegal by the National Green Tribunal as an example of unregulated, ecologically harmful mining.
Stricter safety regulations and effective implementation of environmental laws are essential to prevent mining from becoming a 'killer industry'.
Sustainable mining requires use of improved technologies to extract low-grade ores at low costs, recycling of metals, use of scrap metals and substitutes, and planned extraction aligned with the principle of treating mineral deposits as finite national assets.

ByteNotes

Long Answer

Hard difficulty • Structured explanation

Hard

Question 8

Long Form

How does the geographer's interest in minerals differ from that of a geologist? Explain with reference to how each discipline contributes to understanding India's mineral resources.

Geographers study minerals as part of the earth's crust for a better understanding of landforms; they are primarily interested in the distribution of mineral resources and associated economic activities.
Geologists, by contrast, are interested in the formation of minerals, their geological age, and their physical and chemical composition.
A geographer would analyse why minerals are concentrated in the Deccan plateau or why the Damodar Valley is an industrial hub — connecting mineral distribution to economic geography.
A geologist would study how Gondwana coal formed over 200 million years from compression of plant material, or how bauxite is produced by weathering of aluminium-rich rocks.
Together, both disciplines are essential: geological understanding explains how and where minerals form, while geographic understanding explains how their distribution shapes economic activities, industrial location, and regional development in India.

ByteNotes

Long Answer

Medium difficulty • Structured explanation

Medium

Question 9

Long Form

Discuss the importance of electricity as an energy resource in India, explaining the difference between hydel and thermal power generation.

Electricity is a versatile energy form whose per capita consumption is considered an index of development; it has wide applications in every sector of the economy from industry to households.
Hydroelectricity is generated by fast-flowing water driving hydro turbines — it is a renewable resource; major projects include Bhakra Nangal, Damodar Valley Corporation, and the Kopili Hydel Project.
Thermal electricity is generated by burning coal, petroleum, and natural gas to drive turbines; it uses non-renewable fossil fuels, making it environmentally less sustainable.
Once generated, electricity from hydel and thermal sources is identical in quality and use; the distinction lies in the source and environmental impact.
India needs to expand hydel capacity and reduce dependence on thermal power to move towards sustainable energy generation, in line with the national goal of increasing the share of renewable energy.

ByteNotes

Long Answer

Medium difficulty • Structured explanation

Medium

Question 10

Long Form

Explain the need for conservation of energy resources in India and suggest measures that citizens and industries can adopt.

Energy is a basic requirement for all economic activities; India's consumption has risen steadily with development but the country remains one of the least energy-efficient in the world.
Rising prices of oil and gas, potential shortages, and serious environmental problems caused by increasing fossil fuel use create urgency for energy conservation and a shift to renewables.
Promotion of energy conservation and increased use of renewable energy sources are the twin planks of sustainable energy development in India.
Citizens can contribute by using public transport systems instead of individual vehicles, switching off electricity when not in use, and using power-saving devices.
Industries should adopt non-conventional energy sources, improve energy efficiency in production processes, and transition from fossil fuel dependence to renewable energy — embodying the principle that 'energy saved is energy produced'.

ByteNotes

Premium Access

Unlock all Long Questions

You are viewing 10 free long questions from this chapter. Upgrade to Premium to unlock the remaining 10 questions.

Upgrade to Premium10 questions locked

Chapter sections

Chapter 5: Minerals and Energy Resources | Long Questions

Analyse the distribution of iron ore in India with reference to the four major iron ore belts and the significance of each belt.

Compare the different modes of occurrence of minerals in nature, explaining which type yields metallic minerals and which yields energy minerals.

Describe the distribution of coal in India, discussing the significance of Gondwana coalfields versus tertiary coal deposits.

Explain the significance of non-conventional energy sources in addressing India's energy security, environment, and rural development challenges.

Analyse why India's mineral resources are unevenly distributed across different regions and what geological factors explain this pattern.

Discuss the role of petroleum and natural gas as energy resources in India, covering their occurrence, major fields, and infrastructure.

Evaluate the environmental and social impacts of mining activities in India and suggest measures for making mining more sustainable.

How does the geographer's interest in minerals differ from that of a geologist? Explain with reference to how each discipline contributes to understanding India's mineral resources.

Discuss the importance of electricity as an energy resource in India, explaining the difference between hydel and thermal power generation.

Explain the need for conservation of energy resources in India and suggest measures that citizens and industries can adopt.

Unlock all Long Questions