Carbon Cycle and Greenhouse

Front

What process returns carbon back into the atmosphere when organisms die?

Back

Decomposition.

Front

How does increased carbon dioxide contribute to global warming?

Back

By trapping more heat in the atmosphere.

Front

What would happen to Earth without the greenhouse effect?

Back

It would be too cold to support life.

Front

Where does soil get its carbon from?

Back

From dead animals and plants.

Front

Which process removes carbon dioxide from the atmosphere?

Back

Tree farms.

Front

What is the carbon cycle?

Back

The process by which carbon is exchanged between the atmosphere, land, water, and living organisms.

Front

What role do plants play in the carbon cycle?

Back

Plants absorb carbon dioxide during photosynthesis.

Front

What is the greenhouse effect?

Back

The warming of Earth’s surface due to the trapping of heat by greenhouse gases.

Front

Name a greenhouse gas other than carbon dioxide.

Back

Methane.

Front

What human activity increases carbon dioxide levels in the atmosphere?

Back

Burning fossil fuels.