Question

Which of the following represents net primary productivity?

Q: Answer-Which of the following represents net primary productivity?

Net Primary Productivity NPP is the energy or biomass that remains after autotrophs producers have used some of it for respiration R. It represents the energy available for the next trophic level, i.e., herbivores primary consumers. It is calculated as NPPGPPR where GPP Gross Primary Productivity is the total energy fixed by autotrophs through photosynthesis, and R is the energy used in respiration.