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What would happen if phytoplankton of an ocean is completely destroyed for some reason?

I. The ocean as a carbon sink would be adversely affected.
II. The food chains in the ocean would be adversely affected.
III. The density of ocean water would drastically decrease.

Select the correct answer using the codes given below:

A I and II only
B II only
C III only
D I, II and III
Answer & Explanation
Option: [A]

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