With reference to the planet Earth, consider the following

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

[UPSC 2025 GS I Question Paper with Answer Key]

A I and II

B II only

C I and III

D None of the above statements is correct

EXPLANATION

https://oceanse rvice.noaa.gov/f acts/oceanoxygen.html https://ocean.si .edu/oc...

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