Ch.8 Earth's Processes and Cycles

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What is Natural Gas?

Back

A mixture of gases found in Earth's crust.

Front

What are Fossil Fuels?

Back

A source of energy made from remains of ancient, once-living things.

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What is Petroleum?

Back

Thick oil found by drilling beneath Earth's surface.

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What does Decay mean?

Back

The process of rotting.

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What is Coal?

Back

A hard black or brown substance that is found in Earth and is burned as fuel.

Front

What is the main component of Natural Gas?

Back

Methane.

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How are Fossil Fuels formed?

Back

From the remains of ancient plants and animals that have been buried and subjected to heat and pressure over millions of years.

Front

What is the difference between Oil and Petroleum?

Back

Oil is a general term for liquid fossil fuels, while Petroleum specifically refers to crude oil extracted from the ground.

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What is the environmental impact of burning Fossil Fuels?

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It releases greenhouse gases, contributing to climate change.

Front

What is a renewable energy source?

Back

An energy source that can be replenished naturally, such as solar or wind energy.