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Question

Biology Question on Eco-System

In the equation GPPR=NPPRGPP - R = NPP\,\,\, R represents :

A

Radiant energy

B

Retardation factor

C

Environment factor

D

Respiration losses

Answer

Respiration losses

Explanation

Solution

Gross primary productivity minus respiration losses (R)(R), is the net primary productivity (NPP)(NPP).
GPPR=NPP.GPP - R = NPP.