PRELIMS 2011 · ENVIRONMENT

In the context of ecosystem productivity, marine upwelling zones are important as they in…

Attempt this previous-year question. The correct option stays hidden until you choose.

Question

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?

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