Q23
The main mineral found in upper Brahmaputra valley is
A.
Coal
B.
Iron are
C.
Petroleum
AnswerD.
Manganese
Answer: Option C
Solution
Answer: Option C
Solution:
Main mineral found in upper Brahmaputra valley is petroleum. British in 1901 started extracting petroleum in Digboi district of Assam. It is oldest petroleum refinery in India.