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5 Cards in this Set

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What is a fossil fuel?

A fuel that contains a store of energy such as coal, oil and natural gas.

How are fossil fuels formed?

Fossil fuels are formed when fossils or plants and/or animals are squashed.

What is kinetic energy?

Movement energy.

What are non-renewable fuels?

Fuels that can run out and cannot be reused.

What is the independent variable?

The variable that is deliberately changed.