$A$ scrubber in the exhaust of a chemical industrial plant removes.......

  • A
    Gases like sulphur dioxide
  • B
    Particulate matter of the size $5$ micrometre or above
  • C
    Gases like $CO_2$ and methane
  • D
    Particulate matter of the size $2.5$ micrometre or less

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Volcano eruption disturbs which of the following biogeochemical cycles?

Which of the following is $NOT$ an effect of noise pollution on humans?

Air pollutants:
$I.$ Cause injury to all living organisms.
$II.$ Reduce growth and yield of crops and cause premature death of plants.
$III.$ Affect the respiratory system of humans and animals.
Which of the statements given above are correct?

Carbon monoxide $(CO)$ is a pollutant because...

In eutrophication,dissolved $O_2$ ....... and $BOD$ ......

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