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NEET 2021
Exam
NEET
Year
2021
Subject
Botany
Chapter
Ecosystem

NEET 2021 · Botany · Ecosystem

In the equation, GPP - R = NPP , R represents:

In the equation, GPP−R=NPPGPP - R = NPP, RR represents:

Options

  1. ARadiant energy
  2. BRetardation factor
  3. CEnvironment factor
  4. DRespiration losses

Correct answer

D. Respiration losses

Step-by-step solution

The gross primary productivity (GPP) refers to the rate of energy stored by photosynthesis in plants. The R refers to the maintenance and reproduction of plants from the energy expended. GPP minus respiration losses (R) is the net primary productivity (NPP). GPP−R=GPP - R = NPPNPP.

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