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AP Biology Practice Questions

Category - Biology

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In the water cycle, which of the following processes water to the atmosphere?

I. Transpiration
II. Precipitation
III. Evaporation
  1. I only
  2. II only
  3. III only
  4. II and III only
  5. I and III only
Explanation
Answer: E, I and III only. Both transpiration and evaporation return water to the atmosphere in the water cycle.

Key Takeaway: The water cycle is a process by which water is continually recycled between water deposits on Earth such as oceans and the atmosphere. Water is returned to the planet by precipitation, and returned to the atmosphere by evaporation of water sources or transpiration in plants.
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