Question

how petroleum and natural gases are formed???...​

Answer 1

Answer:

Oil and natural gas were formed from the remains of prehistoric plants and animals—that's why they're called fossil fuels. Hundreds of millions of years ago, prehistoric plant and animal remains settled into the seas along with sand, silt and rocks.

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Answer 2

Answer:

Petroleum is found at moderate depths (500 metre to 2000 metre) between two layers of impervious rocks. Petroleum deposits are usually found mixed with salt water. Petroleum ,being lighter than salt water ,floats over it. Natural gas is found above petroleum, it is trapped between the rock cap and the petroleum layer.

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