The Tertiary coals of India are found mainly in:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → the north-eastern states such as Meghalaya and Assam
Indian coal is of two ages. The older Gondwana coal lies in the Damodar, Godavari, Mahanadi, Son and Wardha valleys. The younger Tertiary coal occurs in the north-eastern states of Meghalaya, Assam, Arunachal Pradesh and Nagaland.