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 happens to carbon when fossil fuels are burned?

Back

When fossil fuels are burned, carbon is released into the atmosphere as carbon dioxide.

Front

What is the role of plants in the carbon cycle?

Back

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

Front

What is combustion?

Back

Combustion is a chemical reaction that occurs when a substance reacts with oxygen, producing heat and light, and often resulting in the release of carbon dioxide.

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

How does animal respiration contribute to the carbon cycle?

Back

During respiration, animals take in oxygen and release carbon dioxide back into the atmosphere, contributing to the carbon cycle.

Front

What is the significance of carbon in living organisms?

Back

Carbon is known as the chemical backbone of all life on Earth, as it is a key component of biological molecules such as proteins, lipids, carbohydrates, and nucleic acids.

Front

What is the effect of decreased plant populations on carbon levels?

Back

If the plant population decreases, the amount of carbon dioxide in the atmosphere would increase due to reduced photosynthesis.

Front

What process does not produce carbon dioxide?

Back

Photosynthesis does not produce carbon dioxide; instead, it consumes carbon dioxide to produce glucose and oxygen.

Front

What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of ancient plants and animals, primarily consisting of carbon and used as energy sources.