The Carbon Cycle and Human Impact 2025

What is the fundamental building block of life on Earth that plays a crucial role in regulating the planet's temperature?

• Carbon

• Oxygen

• Nitrogen

• Hydrogen

Which process is NOT involved in the movement of carbon through various reservoirs?

• Photosynthesis

• Respiration

• Decomposition

• Evaporation

How much more carbon does the ocean hold compared to the atmosphere?

• 10 times more

• 20 times more

• 50 times more

• 100 times more

What human activity is primarily responsible for releasing vast amounts of carbon into the atmosphere?

• Burning of fossil fuels

• Agriculture

• Urbanization

• Mining

What is a major consequence of increased atmospheric carbon dioxide due to human activities?

• Global cooling

• Ocean acidification

• Decreased plant growth

• Reduced carbon storage in oceans

Summarize the carbon cycle in 3 sentences. Include how humans affect the carbon cycle.

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