Understanding the Carbon Cycle

All of the following processes affect the amount of carbon dioxide in the atmosphere. All of these processes involve living things EXCEPT...

• Photosynthesis

• Respiration

• Combustion of fossil fuels

• Vulcanism

Tags

HS-LS2-5

What is the primary process by which plants remove carbon dioxide from the atmosphere?

• Respiration

• Photosynthesis

• Combustion

• Decomposition

Which of the following is a product of respiration in living organisms?

• Oxygen

• Glucose

• Carbon Dioxide

• Nitrogen

Where is the largest amount of carbon stored in terrestrial ecosystems?

• Atmosphere

• Soil

• Oceans

• Forests

How do human activities primarily increase the amount of carbon dioxide in the atmosphere?

• Photosynthesis

• Deforestation

• Volcanic Eruptions

• Ocean Absorption

Which of the following human activities is a major contributor to the increase of carbon dioxide in the atmosphere?

• Planting Trees

• Burning Fossil Fuels

• Using Solar Panels

• Recycling

What role do oceans play in the carbon cycle?

• They are a source of carbon emissions.

• They store carbon dioxide and regulate atmospheric levels.

• They have no role in the carbon cycle.

• They only release carbon dioxide.

Which process in aquatic systems helps in the removal of carbon dioxide from the atmosphere?

• Evaporation

• Photosynthesis by aquatic plants and algae

• Sedimentation

• Respiration by fish

How does climate change affect the carbon cycle?

• It decreases the amount of carbon stored in oceans.

• It increases the rate of photosynthesis globally.

• It alters the balance of carbon storage and release.

• It has no effect on the carbon cycle.

Which of the following is a consequence of increased carbon dioxide levels in the atmosphere?

• Decreased global temperatures

• Ocean acidification

• Increased oxygen levels

• Reduced plant growth