Multiple choice

What percentage of the solar energy that falls on the leaves is utilized by the plants for the process of photosynthesis?

  1. 1

  2. 2

  3. 5

  4. 10
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A Correct answer
Explanation

Plants typically utilize only about 1% of the total solar radiation reaching their leaves for photosynthesis. Most energy is either reflected, transmitted, or lost as heat. This low efficiency explains why plants need large surface areas to capture sufficient energy.

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