In Kolkakta, major air pollution is caused by

Options :
  1. fungal spores
  2. algae
  3. hydrocarbon
  4. carbon monoxide


Answer and Explanation :-

Answer: Option 4

Explanation:

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And, in the warm silence, in the peaceful solitude of the study, Clotilde smiled down at the baby who was still sucking - his little arm in the air, pointing upwards, a symbol of hope and life.
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