Carbon Cycle Exam Review

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 when humans burn fossil fuels?

Back

When humans burn fossil fuels, carbon stored in these fuels is released into the atmosphere as carbon dioxide, contributing to climate change.

Front

What is respiration in the context of the carbon cycle?

Back

Respiration is the process by which living organisms convert sugar and oxygen into energy, producing carbon dioxide and water as byproducts.

Front

How do plants contribute to the carbon cycle?

Back

Plants absorb carbon dioxide from the atmosphere during photosynthesis and release oxygen, playing a crucial role in regulating atmospheric carbon levels.

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

Where can carbon be found?

Back

Carbon can be found in the atmosphere, inside the Earth (in rocks and fossil fuels), and in living organisms.

Front

What is the role of decomposers in the carbon cycle?

Back

Decomposers break down dead organic matter, returning carbon to the soil and atmosphere, thus completing the carbon cycle.

Front

What is the difference between photosynthesis and respiration?

Back

Photosynthesis converts carbon dioxide into glucose and oxygen using sunlight, while respiration converts glucose and oxygen into energy, releasing carbon dioxide.

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

What human activities increase carbon dioxide levels?

Back

Human activities such as burning fossil fuels, deforestation, and industrial processes increase carbon dioxide levels in the atmosphere.