With regards to productivity of an ecosystem, which of the following statements is accurate?

a. GPP is greater than NPP because of the metabolic process of photosynthesis.
b. GPP is greater than NPP because of the metabolic process of respiration.
c. NPP is greater than GPP because of the metabolic process of photosynthesis.
d. NPP is greater than GPP because of the metabolic process of respiration.
e. There is no significant difference between GPP and NPP.


B

Environmental & Atmospheric Sciences

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Environmental & Atmospheric Sciences