About _______ % of the coal deposits in India is of bituminous type.

Correct option is A

Information Booster
Coal in India is primarily of the bituminous and sub-bituminous type. The vast majority of India's total coal deposits are found in the Gondwana fields and are of the bituminous type, with a widely quoted estimate that about 80% of the country's coal resources belong to this category. Bituminous coal is a medium-grade coal with high heating value.
Information Booster
· Coal Type: Bituminous coal is a medium-grade coal with a high carbon content and high heating value.
· Proportion: Approximately 80% of the total coal deposits in India are of the bituminous type.
· Geological Origin: Most of this coal belongs to the Gondwana system (Permian period).
· Location: These deposits are mainly found in the river valleys of Damodar, Mahanadi, Godavari, and Son.
· Usage: The coal is primarily used in thermal power generation and as a raw material in steel production.
Additional Points
· 75, 65, and 70: While these values are close, 80% is the historically and commonly cited figure for the proportion of bituminous coal in India's total reserves.