Question

How is petroleum formed inside the
"side the earth?
​

Answer 1

Petroleum (also known as crude oil or simply oil) is a fossil fuel that was formed from the remains of ancient marine organisms. Millions of years ago, algae and plants lived in shallow seas. After dying and sinking to the seafloor, the organic material mixed with other sediments and was buried.

Answer 2

petroleum is formed when thousands of sea animals decay under sea bed and are under great pressure and temperature over millions of years

hope it helps u .......