The Impact of Human Activity on the Carbon Cycle
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Questions and Answers

What is the primary cause of ocean acidification?

  • Deforestation and land use changes
  • Increased absorption of CO2 by the oceans (correct)
  • Changes in agricultural practices
  • Burning of fossil fuels
  • What is the effect of deforestation and land use changes on the carbon cycle?

  • Increased carbon dioxide emissions from burning of fossil fuels
  • Reduced amount of carbon stored in trees and soil, releasing carbon into the atmosphere (correct)
  • Increased absorption of CO2 by the oceans
  • Changes in agricultural practices
  • How have changes in agricultural practices contributed to changes in the carbon cycle?

  • All of the above
  • Changes in crop types
  • Decreased use of fertilizers
  • Increased use of fertilizers (correct)
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