EOC Review: 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 do humans depend on for respiration?

Back

Oxygen.

Front

What do plants depend on for photosynthesis?

Back

Carbon dioxide.

Front

What are fossil fuels?

Back

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

Front

Is all carbon in existence continually recycled?

Back

True.

Front

Where can carbon be found?

Back

In the soil, atmosphere, ocean, and in living and dead organisms.

Front

What process do plants use to convert carbon dioxide into oxygen?

Back

Photosynthesis.

Front

What is the role of decomposers in the carbon cycle?

Back

They break down dead organisms, returning carbon to the soil and atmosphere.

Front

What is combustion in relation to the carbon cycle?

Back

The process of burning fossil fuels, which releases carbon dioxide into the atmosphere.

Front

How do animals contribute to the carbon cycle?

Back

By respiring, they release carbon dioxide back into the atmosphere.