A friend argues that the location of Peteoluem deposit is a sign that marine organisms once lived there. Is your friend correct? EXPLAIN

Your question is incorrect as your spellings of "Peteoluem" is incorrect. Please let me assume this to be your question.

A friend argues that the location of Petroleum deposit is a sign that marine organisms once lived there.Is your friend correct? EXPLAIN.

MY FRIEND IS CORRECT.

Explanation: Petroleum deposit are generally known as oil and gas reserve. This deposit are formed by organic decay of plants and animals such like algae and zooplankton. When they die, their settle at the bottom of the sea, as their decay for millions of years under heat to form crude oil or natural gas. If the the heat is too much, Natural gas will be formed in that reservoir, but if the heat is lighter, crude oil will be formed.

My friend is correct because, petroleum deposit are formed from organic decay of marine substance.

Even though it is known that petroleum deposit can flow from one reservoir to another, which makes a reservoir to be located where it is not formed. But in most cases it is not far from where it is formed. That means marine organism may have still lived in that area.