Ecosystems and Biogeochemical Cycles Quiz

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Questions and Answers

What is the basis of organic compounds and cycles through most systems?

  • Nitrogen
  • Carbon (correct)
  • Methane
  • Oxygen

What is the metabolic reaction of using photosynthesis to harness carbon-compounds called?

  • Carbon accumulation
  • Carbon sequestration
  • Carbon fixation (correct)
  • Carbon degradation

Where do plants take in CO2 from to undergo carbon fixation?

  • Biosphere
  • Atmosphere (correct)
  • Hydrosphere
  • Geosphere

What happens when animals decay (decompose) and are no longer alive?

<p>They release carbon into the soil (B)</p> Signup and view all the answers

What is the combination of the exchanges of carbon between the biosphere, geosphere, hydrosphere, and atmosphere called?

<p>Carbon cycle (D)</p> Signup and view all the answers

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