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

1. More than 90 percent of limestone reserves of India are found in them
2. More than 90 percent of India’s coal reserves are found in them
3. More than 90 percent of fertile black cotton soils are spread over them
4. None of the reasons given above is appropriate in this context

Explanation

Option (b) is correct

• Gondwana coal makes up to 98 per cent of the total reserves and 99 per cent of the production of coal in India.

Answer: (b) More than 90 percent of India’s coal reserves are found in them