The 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

How do living organisms return carbon to the atmosphere?

Back

Living organisms return carbon to the atmosphere primarily through respiration and decomposition.

Front

What role do plants play in the carbon cycle?

Back

Plants absorb carbon dioxide from the atmosphere during photosynthesis, converting it into organic matter.

Front

How does carbon move from plants to animals?

Back

Carbon moves from plants to animals when animals consume plants or other animals that have eaten plants.

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 decomposition?

Back

Decomposition is the process by which dead organic matter is broken down by microorganisms, returning carbon to the soil and atmosphere.

Front

What is the significance of carbon dioxide in the atmosphere?

Back

Carbon dioxide is a greenhouse gas that helps regulate Earth's temperature by trapping heat in the atmosphere.

Front

What is the difference between the biosphere and the atmosphere?

Back

The biosphere is the global sum of all ecosystems, where life exists, while the atmosphere is the layer of gases surrounding the Earth.

Front

What human activities contribute to increased carbon dioxide levels?

Back

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