Carbon Cycle Practice

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged between the Earth's atmosphere, land, water, and living organisms. It involves various processes such as photosynthesis, respiration, decomposition, and combustion.

Front

What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of dead plants and animals that have been subjected to heat and pressure over millions of years. They include coal, oil, and natural gas.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert carbon dioxide and water into glucose and oxygen using sunlight.

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 and water as byproducts.

Front

What is decomposition?

Back

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

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 reaction that occurs when a substance reacts with oxygen, producing heat and light. In the carbon cycle, it refers to the burning of fossil fuels, which releases carbon dioxide 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 on Earth, and regulating the Earth's climate.

Front

How does carbon enter the atmosphere?

Back

Carbon enters the atmosphere through processes such as respiration, decomposition, combustion of fossil fuels, and volcanic eruptions.

Front

What is the role of oceans in the carbon cycle?

Back

Oceans absorb a significant amount of carbon dioxide from the atmosphere, acting as a carbon sink and helping to regulate global carbon levels.