Question

Petroleum is called 'black gold and trees are called green gold. Why? hots​

Answer 1

Answer:

I hope you will understand this figure please thanks my answer

Answer 2

Answer:

Because trees give us oxygen and trees helps every living being until they live .And petroleum is formed when trees are brued under the ground for many thousands of years..

so trees are called as green gold.

petroleum is very important and costly now-a-days.

so it is called as black gold.

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