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Question

Difficulty: EasyWater Cycle and Oceanography

Plants take up groundwater through their root systems and release moisture as water vapor into the atmosphere through microscopic pores in their leaves. Which process in the hydrologic cycle is being described?

  1. A
    Condensation
  2. B
    Precipitation
  3. TranspirationAnswer
  4. D
    Infiltration

Answer

Transpiration
Transpiration is the biological process within the water cycle in which water absorbed by plant roots travels upward through vascular tissues and is released as water vapor into the atmosphere through stomata on the surface of leaves.

Step-by-Step Solution

1
Identify the key components of the described scenario
Water is absorbed by plant roots, travels to leaf structures (stomata), and exits into the atmosphere as water vapor.
Recognizing the biological pathway distinguishes this mechanism from general surface evaporation or downward water movement.
2
Match the biological water-loss process to its standard scientific term
The process of plant-mediated evaporation is defined as transpiration.
While general evaporation occurs from open bodies of water and soil, transpiration specifically accounts for plant-driven water vapor release in the hydrologic cycle.

Key Concept

Plant Transpiration in the Water Cycle
Estimated Time:45s
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Topics

Water Cycle and Oceanography

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