What is the amount of incident solar radiation that is photosynthetically active radiation (PAR)?

What is the amount of incident solar radiation that is photosynthetically active radiation (PAR)?
  1. Less than 10%
  2. Less than 25%
  3. Less than 50%
  4. Less than 75%

Solution

Of the incident solar radiation, less than 50% of it is photosynthetically active radiation (PAR).

Asked in: NCERT

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