Human Impacts and Fossil Fuels

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What is Natural Gas?

Back

A fossil fuel that undergoes the most heat and pressure, primarily composed of methane.

Front

What percentage of our energy comes from fossil fuels?

Back

75 - 85% of our energy comes from fossil fuels.

Front

What does non-renewable mean?

Back

Something that cannot be replaced quickly, such as fossil fuels.

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How long does it take for fossil fuels to form?

Back

Fossil fuels take millions of years to form.

Front

Why are fossil fuels a sought after energy source?

Back

They have a high energy density, providing a large amount of energy per unit.

Front

What are fossil fuels?

Back

Natural substances formed from the remains of ancient plants and animals, including coal, oil, and natural gas.

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What is coal?

Back

A solid fossil fuel formed from plant remains that have been subjected to heat and pressure over millions of years.

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What is oil?

Back

A liquid fossil fuel formed from the remains of tiny sea creatures, also subjected to heat and pressure.

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What is biomass?

Back

Organic material that comes from plants and animals, which can be used as a renewable energy source.

Front

What is energy density?

Back

The amount of energy stored in a given system or region of space per unit volume or mass.