Question detail

What is the primary source of crude oil?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Carbon compounds as fuels and feedstock

Question

A. Ancient forests
B. Marine organisms
C. Volcanic activity
D. Atmospheric gases

Answer

Marine organisms

Explanation

Crude oil is primarily derived from the remains of ancient marine organisms, particularly plankton, that have been buried under layers of sediment.

Common mistake

Misunderstanding Crude Oil Formation

Students often think that crude oil is formed from just any organic material rather than specifically from ancient plankton buried in mud.

Emphasize that crude oil specifically originates from the remains of ancient biomass, primarily plankton, which were buried in mud over millions of years.

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