In the context of ecosystem productivity, marine upwelling zones are i – McqOptions

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1.	In the context of ecosystem productivity, marine upwelling zones are important as they increase the marine productivity by bringing the:1. 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 2
D.	3 only
Answer» C. 2 and 2

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