Which of the following is also known as the ‘black gold’?
CNG
Natural gas
Coal
Petroleum
Answers
Answered by
2
Answer:
coal................
Answered by
3
Answer:
Petroleum
Explanation:
Petroleum has been nicknamed as the black gold. The reasons for petroleum being called so are:
1) Petroleum is scarce and hard to find in the Earth’s surface.
2) Petroleum is very costly to extract.
3) Petroleum is very valuable.
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