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 processes such as photosynthesis, respiration, decomposition, and combustion.

Front

What process is represented by respiration in the carbon cycle?

Back

Respiration is the process by which living organisms convert oxygen and glucose into energy, releasing carbon dioxide as a byproduct.

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 role do plants play in the carbon cycle?

Back

Plants absorb carbon dioxide from the atmosphere during photosynthesis, converting it into glucose and oxygen, thus playing a crucial role in reducing atmospheric carbon levels.

Front

What is decomposition in the context of the carbon cycle?

Back

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

Front

How does combustion affect the carbon cycle?

Back

Combustion is the process of burning fossil fuels, which releases carbon dioxide into the atmosphere, increasing greenhouse gas concentrations and contributing to climate change.

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 the significance of carbon sinks?

Back

Carbon sinks are natural systems that absorb more carbon than they release, such as forests, oceans, and soil, helping to mitigate 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, including carbon dioxide, in the atmosphere.

Front

What is the role of ocean in the carbon cycle?

Back

Oceans act as a major carbon sink, absorbing carbon dioxide from the atmosphere and storing it in water and marine organisms.