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UPSC Prelims 2011Question 47Environment

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-oft from the land during the monsoon. 3. Upwelling in the seas. Select the correct answer from the codes given below:

Options

  1. (a)1 only
  2. (b)1 and 2 only
  3. (c)2 and 3 only
  4. (d)1, 2 and 3

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