Question

Coal, petroleum, natural gas and propane are fossil fuels. They are called fossil fuels because ________.

• A. they are burnt to release energy and they cause air pollution.
• B. they were formed from the buried remains of plants and tiny animals that lived hundreds of millions of years ago.
• C. they are non renewable and will run out.
• D. they are mixed with fossils to provide energy.

Answer 1

The correct option is B they were formed from the buried remains of plants and tiny animals that lived hundreds of millions of years ago.

Fossil fuels were formed from the buried remains of plants and tiny animals that lived hundereds of millions of years ago. Coal, petroleum, natural gas and propane all are formed by same process and hence known as fossil fuels.