1.

In the context of ecosystem productivity, marine upwelling zones are important as they increase the marine productivity by bringing the1. decomposer microorganisms to the surface.2. nutrients to the surface.3. bottom-dwelling organisms to- the surface.Which of the statements given above is/are correct?

A. 1 and 2
B. 2 only
C. 2 and 3
D. 3 only
Answer» C. 2 and 3


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