GS PrelimsEnvironmentEcosystem2025

With reference to the planet Earth, consider the following statements : 1. Rain forests produce more oxygen than that produced by oceans. 2. Marine phytoplankton and photosynthetic bacteria produce about 50% of world's oxygen. 3. Well-oxygenated surface water contains several folds higher oxygen than that in atmospheric air. Which of the statements given above is/are correct?

A

I and II

B

II only

C

I and III

D

None of the above statements is correct

Correct Answer: Option B

Explanation

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