Why Are Changes in the Global Carbon Cycle Important

question 23

Multiple Choice

Why are changes in the global carbon cycle important?

• A) Burning increases available carbon for primary producers and, therefore, primary consumers.
• B) Deforestation and suburbanization increase an area's net primary productivity.
• C) Increasing atmospheric concentrations of carbon dioxide are altering Earth's climate.
• D) By using fossil fuels, we are replenishing a nonrenewable resource.

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