Carbon Cycle Practice

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 such as photosynthesis, respiration, decomposition, and combustion.

Front

What process is represented by number 3 in the carbon cycle diagram?

Back

Respiration.

Front

What is photosynthesis?

Back

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

Front

What is decomposition?

Back

Decomposition is the process by which organic substances are broken down into simpler organic or inorganic matter, often involving the action of microorganisms.

Front

What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of ancient plants and animals, which have been subjected to heat and pressure over millions of years, resulting in coal, oil, and natural gas.

Front

What role do plants play in the carbon cycle?

Back

Plants absorb carbon dioxide from the atmosphere during photosynthesis, helping to reduce greenhouse gases and providing oxygen as a byproduct.

Front

What is combustion?

Back

Combustion is a chemical process in which a substance reacts rapidly with oxygen, producing heat and light, often resulting in the release of carbon dioxide.

Front

How does respiration contribute to the carbon cycle?

Back

During respiration, living organisms convert glucose and oxygen into energy, releasing carbon dioxide back into the atmosphere.

Front

What is the significance of the carbon cycle?

Back

The carbon cycle is crucial for maintaining the balance of carbon in the environment, supporting life, and regulating Earth's climate.

Front

What is the difference between organic and inorganic carbon?

Back

Organic carbon is found in living organisms and their remains, while inorganic carbon is found in non-living sources such as carbon dioxide in the atmosphere and carbonates in rocks.