UPSC Prelims 2010·GS1·geography·indian geography

Which one of the following is the appropriate reason for considering the Gondwana rocks as most important of rock systems of India?

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  1. AMore than 90% of limestone reserves of India are found in them
  2. BMore than 90% of India’s coal reserves are found in themCorrect
  3. CMore than 90% of fertile black cotton soils are spread over them
  4. DNone of the reasons given above is appropriate in this context

Explanation

The correct option is B because the Gondwana rock system is primarily known for its vast coal deposits. In India, over 90 percent of the country coal reserves and nearly all of its metallurgical coal are found within this system. These rocks were formed during the Carboniferous to Jurassic periods through the accumulation of plant matter in basin depressions, which eventually transformed into coal. While other rock systems are known for limestone or volcanic soil, the significance of the Gondwana system lies almost entirely in its role as Indias primary source of fossil fuel energy.

geography: Which one of the following is the appropriate reason for considering the Gondwana rocks as most important of rock system
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