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Coal India MT Economics — practice by topic

Browse 6 questions across 1 Economics topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Economics topics

Environment Sustainable Development (6)

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Which of the following is correctly classified as a non-renewable resource?Read the answer and worked solution →The Central Pollution Control Board (CPCB) in India was first set up in the yearRead the answer and worked solution →Which of the following is a renewable source of energy promoted in India under sustainable strategies?Read the answer and worked solution →India supports approximately 17% of the world's human population on only what share of the world's geographical area?Read the answer and worked solution →

Worked practice questions

Which of the following is correctly classified as a non-renewable resource?

  1. Fishes in oceanic stocks within sustainable yield
  2. Fossil fuels such as coal and petroleum
  3. Freshwater from perennial Himalayan streams
  4. Trees in a managed plantation forest
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Correct answer: B. Fossil fuels such as coal and petroleum

Non-renewable resources are those that get exhausted with extraction and use. Fossil fuels — coal, oil, natural gas — regenerate over geological time scales, so on a human time horizon they are non-renewable. Trees, fish and freshwater can regenerate if harvested within their carrying capacity.

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The Central Pollution Control Board (CPCB) in India was first set up in the year

  1. 1974
  2. 1986
  3. 1991
  4. 1972
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Correct answer: A. 1974

The CPCB was established in 1974 under the Water (Prevention and Control of Pollution) Act, primarily to address water and air pollution. State-level boards followed thereafter.

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Which of the following is a renewable source of energy promoted in India under sustainable strategies?

  1. Diesel-based captive generators
  2. Solar power via photovoltaic cells
  3. Naphtha-based combined cycle plants
  4. Coal-fired thermal power
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Correct answer: B. Solar power via photovoltaic cells

Solar photovoltaic technology converts sunlight directly to electricity without emissions and is one of the non-conventional renewable strategies highlighted, alongside wind, mini-hydel and biogas.

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