Rate of biomass production is called productvity and can be divided into GPP and NPP
A. Define GPP and NPP
B. How can we relate GPP and NPP

The rate of biomass production in an ecosystem is called productivity. They are of two types- Gross primary productivity and net primary productiviy. How are these two productivities related?

In the equation GPP - R = NPP. Explain.

GPP-R = NPP is an equation indicating productivity. Illustrate the terms denoted in the equation.