Question

coal and petroleum are termed as ...........​

Answer 1

Answer:

Over millions of years, heat and pressure from Earth's crust decomposed these organisms into one of the three main kinds of fuel: oil (also called petroleum), natural gas, or coal. These fuels are called fossil fuels, since they are formed from the remains of dead animals and plants

Explanation:

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Answer 2

Explanation:

non conventional source of energy.