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Chapter 17 · Class 12 Geography
Mineral and Energy Resources
1 exercises3 questions solved
Exercise 17.1India: People and Economy — Mineral and Energy Resources
Q1
What are the major metallic and non-metallic minerals of India? Where are they found?
Solution
Minerals of India:
• India is richly endowed with minerals — particularly in the Peninsular Plateau (Deccan Plateau and Chota Nagpur Plateau), which has ancient crystalline rocks containing diverse mineral deposits.
• India is among the world's leading producers of iron ore, mica, barite, and manganese.
Metallic Minerals:
1. Iron Ore:
• India has among the world's largest iron ore reserves — about 8% of global reserves.
• Types: Haematite (highest quality, 60%+ iron) and Magnetite.
• Major deposits: Odisha (Keonjhar, Sundargarh — Bailadila region); Jharkhand (Singhbhum — Noamundi); Karnataka (Bellary-Hospet region — Kudremukh); Chhattisgarh (Bailadila).
• India is a major iron ore exporter (though exports have been restricted).
2. Manganese:
• Used in steel making, batteries, and chemicals.
• India is one of the world's top producers.
• Major deposits: Odisha, Karnataka, Madhya Pradesh, Goa.
3. Copper:
• Essential for electrical wiring, electronics, plumbing.
• India has limited reserves — mostly in Rajasthan (Khetri — India's largest copper mine), Jharkhand (Singhbhum), MP (Balaghat).
4. Bauxite (Aluminium ore):
• India has large bauxite deposits.
• Major deposits: Odisha (Kalahandi, Koraput — world's largest bauxite belt), Jharkhand, MP, Gujarat.
5. Gold:
• Limited production — Kolar Gold Fields (Karnataka — now mostly depleted); Hutti (Karnataka).
Non-Metallic Minerals:
1. Limestone:
• Essential for cement production.
• Found abundantly across India — Rajasthan, MP, AP, Chhattisgarh, Himachal Pradesh.
2. Mica:
• India is the world's largest producer and exporter of mica.
• Used in electrical insulation.
• Jharkhand (Koderma — the 'mica belt'), Rajasthan, Andhra Pradesh.
3. Salt:
• Produced from seawater (Gujarat coast — Rann of Kutch produces most of India's salt) and rock salt mines.
4. Gypsum:
• Rajasthan, Jammu, Gujarat — used in cement and plaster of Paris.
Q2
What are the conventional energy resources of India? What is the distribution of coal, petroleum, and natural gas?
Solution
Conventional Energy Resources:
1. Coal:
• India is the world's third-largest coal producer and consumer.
• Coal accounts for about 55% of India's total energy supply.
• Used for: Thermal power generation (about 70% of India's electricity), steel making (coking coal), railways.
Types:
• Gondwana coal: India's most important — about 98% of India's coal reserves. Old coal formed 250+ million years ago. Found in: Jharkhand (Jharia — India's largest coalfield; Bokaro), West Bengal (Raniganj — India's oldest coalfield), Odisha (Talcher), Chhattisgarh (Korba), MP (Singrauli), Telangana.
• Tertiary coal: Younger, lower quality — found in Northeast India (Assam, Meghalaya, Nagaland) and Rajasthan.
2. Petroleum (Oil):
• India has limited oil reserves relative to its consumption — imports about 85% of its oil.
• Major oil fields:
(a) Offshore: Bombay High (Mumbai High, Arabian Sea) — India's largest; discovered 1974; operated by ONGC. Produces about 40% of India's crude oil.
(b) Assam: Digboi (India's oldest oil well — 1889), Naharkatiya.
(c) Gujarat: Ankleshwar, Khambhat.
(d) Rajasthan: Barmer (Mangala field — discovered 2004; significant production).
(e) Krishna-Godavari Basin (KG Basin): Major offshore gas discovery.
3. Natural Gas:
• Used for: Power generation, fertiliser production (petrochemicals), cooking fuel (LPG), CNG (vehicles).
• Major gas fields: Mumbai High, KG Basin (KG-D6 — Reliance's offshore block), Assam.
• India imports LNG (liquefied natural gas) from Qatar, Australia, USA.
Energy Deficit:
• India is significantly energy-deficient — consumption far exceeds domestic production.
• India imports: ~85% of petroleum; some LNG; no coal import needed yet (but imports 'coking coal' for steel from Australia).
• Energy security is a major national priority.
Q3
What are the non-conventional energy sources in India? What is the status of renewable energy?
Solution
Non-Conventional / Renewable Energy in India:
• Conventional energy (coal, oil, gas) is finite and polluting.
• India is investing massively in renewable energy — to improve energy security, meet climate commitments, and reduce import dependence.
• India's target: 500 GW of non-fossil fuel capacity by 2030 (Paris Agreement commitment).
1. Solar Energy:
• India has exceptional solar potential — most of India receives 5–7 kWh/m²/day of solar irradiation.
• Rajasthan, Gujarat, Ladakh, and most of peninsular India are ideal for solar.
• India's installed solar capacity: ~70 GW (2023); growing rapidly.
• Key projects: Bhadla Solar Park (Rajasthan — world's largest solar park, ~2,700 MW); Kurnool Solar Park (Andhra Pradesh); RE-invest Ladakh project.
• International Solar Alliance (ISA): Co-founded by India and France (2015) — promoting solar energy among tropical, solar-rich nations.
2. Wind Energy:
• India has excellent wind resources along coastal areas and mountain passes.
• Installed capacity: ~44 GW (2023) — fourth largest globally.
• Major wind energy states: Tamil Nadu (Muppandal wind farm — largest in Asia), Gujarat (Gulf of Khambhat), Rajasthan, Karnataka, Maharashtra.
3. Hydroelectric Power:
• Hydroelectricity — generated by falling water — is India's largest renewable source.
• India's hydropower potential: About 150,000 MW (only ~47,000 MW utilised).
• Major hydroelectric projects: Bhakra-Nangal (Punjab/Himachal), Tehri Dam (Uttarakhand), Hirakud (Odisha), Nagarjuna Sagar (AP), Sardar Sarovar (Gujarat).
• Challenges: Displacement, ecosystem disruption, silting.
4. Nuclear Energy:
• India has significant uranium and thorium reserves.
• Installed nuclear capacity: ~7,500 MW (about 3% of electricity).
• Major plants: Tarapur (Maharashtra — India's first), Kudankulam (Tamil Nadu — Russian-built), Rawatbhata (Rajasthan), Kaiga (Karnataka).
• India's three-stage nuclear programme: Designed to eventually use abundant thorium reserves.
5. Biogas and Biomass:
• Rural energy — biogas from animal waste (Gobar Gas); biomass burning.
• Government programmes: Gobar-Dhan scheme.
6. Tidal and Geothermal:
• India has some tidal energy potential (Gulf of Kutch, Sundarbans).
• Geothermal: Hot springs in Manikaran (Himachal Pradesh), Puga Valley (Ladakh) — limited development.
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