CFU: Carbon Cycle

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged between the atmosphere, land, water, and living organisms. It involves processes like photosynthesis, respiration, decomposition, and combustion.

Front

What role do plants play in the carbon cycle?

Back

Plants absorb carbon dioxide from the atmosphere during photosynthesis, using it to produce glucose and oxygen.

Front

What is combustion?

Back

Combustion is a chemical reaction that occurs when a substance reacts with oxygen, producing heat and light. It releases carbon dioxide into the atmosphere.

Front

How does carbon dioxide affect global temperatures?

Back

Increased levels of carbon dioxide in the atmosphere trap heat, leading to a rise in global temperatures, a phenomenon known as the greenhouse effect.

Front

What happens to carbon levels if the plant population decreases?

Back

If the plant population decreases, the amount of carbon dioxide in the atmosphere would increase because fewer plants are available to absorb it.

Front

Which human activities contribute to increased CO2 levels?

Back

Activities such as burning fossil fuels, deforestation, and industrial processes contribute to increased carbon dioxide levels in the atmosphere.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

Front

What is respiration in the context of the carbon cycle?

Back

Respiration is the process by which living organisms convert glucose and oxygen into energy, releasing carbon dioxide back into the atmosphere.

Front

What is the significance of trees in the carbon cycle?

Back

Trees absorb carbon dioxide during photosynthesis, helping to reduce atmospheric CO2 levels and combat climate change.

Front

What is a carbon sink?

Back

A carbon sink is a natural or artificial reservoir that absorbs and stores carbon dioxide from the atmosphere, such as forests, oceans, and soil.