Practice Quiz

MCAT Biology

Category - Biology

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In traditional landscaping, leaves are raked off the ground and bagged. In which of the following ways does this practice most significantly disrupt natural nutrient cycling?
  1. It carries away microorganisms that can perform nitrogen fixation.
  2. It reduces the rate of oxygen and carbon cycling via photosynthesis.
  3. It prevents carbon, oxygen, and nitrogen from being returned to the soil.
  4. It increases the amount of carbon dioxide that is released to the atmosphere.
Explanation
Answer: C - It prevents carbon, oxygen, and nitrogen from being returned to the soil.
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