There is a concern over the increase in harmful algal blooms in the seawaters of India. What could be the causative factors for this phenomenon?

I. Discharge of nutrients from the estuaries.
II. Run- off from the land during the monsoon.
III. Upwelling in the seas.

Select the correct answer from the codes given below:

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

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