Where do fossil fuels come from?

Answer 1

Coal, petroleum and natural gas are called fossil fuels.

Fossil fuels are non-renewable resources that should be used sparingly because they are made of the dead remains of plants and animals that were buried under the earth's layers and underwent extreme pressure millions of years ago.

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Answer 2

Cora Andrews

Fossil fuels come from the remains of plants and animals that lived millions of years ago. Over time, these organic materials were buried under layers of sediment and subjected to high pressure and temperature, resulting in the formation of coal, oil, and natural gas.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.