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? 1. Discharge of nutrients from the estuaries. 2. Run-off from the land during the monsoon. 3. Upwelling in the seas. Select the correct answer from the codes given below:
A1 only
B1 and 2 only
C2 and 3 only
D1, 2 and 3
Answer & Solution
Correct answer: D. 1, 2 and 3
UPSC CSE Prelims 2011 (GS-I, Set A), Q.47. Official answer key: D.
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