Carbon Cycle Review

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms, continuously recycling carbon in various forms.

Front

True or False: All of the carbon in existence on Earth is continually recycled in the carbon cycle.

Back

True

Front

What do fossil fuel combustion and wood combustion have in common?

Back

They both produce carbon dioxide.

Front

Is carbon dioxide considered a greenhouse gas?

Back

Yes, carbon dioxide is a greenhouse gas that traps heat in the atmosphere.

Front

What does global warming refer to?

Back

Global warming refers specifically to an increase in Earth's average surface temperature.

Front

How do animals obtain carbon dioxide?

Back

Animals obtain carbon dioxide by eating plants or other animals that have absorbed carbon.

Front

What role do plants play in the carbon cycle?

Back

Plants absorb carbon dioxide from the atmosphere during photosynthesis and convert it into glucose.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants use sunlight to synthesize foods with the help of chlorophyll, converting carbon dioxide and water into glucose and oxygen.

Front

What is the significance of carbon dioxide in the atmosphere?

Back

Carbon dioxide is significant because it helps regulate Earth's temperature by trapping heat, contributing to the greenhouse effect.

Front

What is decomposition in the context of the carbon cycle?

Back

Decomposition is the process by which dead organic matter is broken down by microorganisms, releasing carbon back into the atmosphere as carbon dioxide.