What is photosynthetically active radiation (PAR)?

What is photosynthetically active radiation (PAR)?
  1. The amount of incident solar radiation that is used by autotrophs
  2. The amount of solar radiation that is not used by autotrophs
  3. The amount of solar radiation that is used by heterotrophs
  4. The amount of solar radiation that is not used by heterotrophs

Solution

Photosynthetically active radiation (PAR) refers to the amount of incident solar radiation that is used by autotrophs, such as plants and photosynthetic bacteriA)

Asked in: NCERT

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