The Carbon Cycle

Front

What is the Carbon Cycle?

Back

The circulation of the element Carbon among Earth's atmosphere, land, oceans, and organisms.

Front

What is an essential element of all living creatures?

Back

Carbon.

Front

How long does it take for once-living matter to transform into fossil fuels?

Back

Millions of years.

Front

What do ocean coral and oysters use carbon to create?

Back

Shells.

Front

What process do algae and plants use carbon from the atmosphere for?

Back

Photosynthesis.

Front

What is the primary gas that plants take in during photosynthesis?

Back

Carbon dioxide.

Front

What are fossil fuels primarily made of?

Back

Carbon.

Front

What role does carbon play in the environment?

Back

It is a key component of biological molecules and is essential for life.

Front

What is the process called when carbon is released back into the atmosphere?

Back

Respiration and combustion.

Front

What is the term for the natural process of carbon being absorbed by plants?

Back

Carbon sequestration.