WBCS.LIVE practice question

In the context of eco-system 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. Botton-dwelling organisms to the surface. Which of the statements given above is/are correct?

Solve this multiple-choice question and check the correct answer with its explanation below.