C. Answer in one sentence (Any 4)
1. Why is coal called 'black gold?
Answers
Answered by
1
Coal is called black gold because it is black in colour and it is costly too.
Answered by
1
Answer:
bro mainly petroleum is called black gold
Explanation:
reason is that it is black in color and very valuable ( as its extraction is costly and it is needed for various purposes )
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