Question

how was petroleum formed ?​

Answer 1

Oil and gas are formed from organic material mainly deposited as sediments on the seabed and then broken down and transformed over millions of years. ... One of the products of anaerobic decomposition of organic matter is kerogen, which at high temperature and pressure slowly generates oil and gas.

Answer 2

Answer:

from planktons

Explanation:

Planktons are animals which live under deep seas and oceans which contain some oil substances, after they die millions of planktons dead bodies get collected on the ocean floor and they get burried , because of high temperature and pressure they release BUTANE, METHANE GASES and PETROLEUM.