The Carbon Cycle

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. It involves processes like photosynthesis, respiration, decomposition, and combustion.

Front

How does carbon from plants enter the food chain?

Back

Carbon from plants enters the food chain when herbivores eat the plants, and then carnivores eat the herbivores.

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 role do animals play in the carbon cycle?

Back

Animals contribute to the carbon cycle by respiring carbon dioxide back into the atmosphere and through decomposition after they die.

Front

What is the significance of fossil fuels in the carbon cycle?

Back

Fossil fuels store carbon that was once part of living organisms. When burned, they release carbon dioxide into the atmosphere, contributing to climate change.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of the Earth's surface due to the trapping of heat by greenhouse gases like carbon dioxide in the atmosphere.

Front

How do human activities affect the carbon cycle?

Back

Human activities, such as burning fossil fuels and deforestation, increase carbon dioxide levels in the atmosphere, disrupting the natural carbon cycle.

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 as a byproduct.

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 are carbon sinks?

Back

Carbon sinks are natural systems, like forests and oceans, that absorb more carbon dioxide from the atmosphere than they release.