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Questions and Answers
What is carbon, in the context of the biogeochemical cycle?
What is carbon, in the context of the biogeochemical cycle?
- A compound found only in living organisms
- A byproduct of photosynthesis
- A type of fossil fuel
- An element that is the basis of life on Earth (correct)
What is the primary mechanism by which fossil fuels release stored carbon?
What is the primary mechanism by which fossil fuels release stored carbon?
- By reacting with oxygen in the atmosphere
- By releasing carbon slowly over time
- Through the process of photosynthesis
- Through the process of combustion (correct)
What is a consequence of fewer plants on Earth?
What is a consequence of fewer plants on Earth?
- The Earth's atmosphere becomes cooler
- The rate of photosynthesis increases
- More carbon dioxide is removed from the atmosphere
- Less carbon dioxide is removed from the atmosphere (correct)
What is a result of increased carbon dioxide in the atmosphere?
What is a result of increased carbon dioxide in the atmosphere?
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What is the primary source of carbon release into the atmosphere, according to the text?
What is the primary source of carbon release into the atmosphere, according to the text?
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Study Notes
Carbon and the Carbon Cycle
- Carbon is an element and the basis of life on Earth.
- Carbon is found in rocks, oceans, and the atmosphere.
Human Impact on the Carbon Cycle
- Fossil fuels release stored carbon very slowly.
- Burning fossil fuels and other organic materials releases additional carbon into the atmosphere.
- This increased carbon dioxide in the atmosphere contributes to global warming.
- With fewer plants, less CO2 is removed from the atmosphere.
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Description
Understand the basics of the carbon cycle, its importance in life on Earth, and how human activities like burning fossil fuels affect the environment and contribute to global warming.
