Effect of pollution is first marked on

Options :
  1. micro organisms
  2. vegetation
  3. food crops
  4. none of the above
Answer and Explanation :-

Answer: Option 2

Explanation:

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It doesn't matter how wealthy you may be in material things, what matters is do you know what to do with those wealth?
-Jaachynma N.E. Agu The Prince and the Pauper