Question

How do petroleum and natural gas occur in nature?
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Answer 1

Petroleum and natural gas occur due to dead and decaying parts of animals and plants who are burried under ground due to some natural disaster after Millions of year they form .

Answer 2

Explanation:

• petroleum is found at moderate depth 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