gs1medium

In the context of ecosystem productivity, marine upwelling zones are important as they increase the marine productivity by bringing the

  1. 1.Decomposer microorganisms to the surface
  2. 2.Nutrients to the surface.
  3. 3.bottom-dwelling organisms to the surface. Which of the statements given above is/are correct?
  1. A.1 and 2
  2. B.2 only
  3. C.2 and 3
  4. D.3 only
▶ Answer & Explanation

Correct answer: B. 2 only

Marine upwelling is a process where deep, cold, and nutrient-rich water rises to the surface. These nutrients, such as nitrates and phosphates, are essential for the growth of phytoplankton, which form the base of the marine food web. Consequently, areas with significant upwelling exhibit high primary productivity and support abundant marine life.

Source: UPSC gs1 2011

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