Particulate matter with a diameter of $2.5$ micrometres or less and a sound level of $150$ $dB$ or more causes the greatest harm to human health.

Electrostatic Precipitator $(ESP)$:
$I.$ Is an electrical device to remove particulate matter present in the exhaust of thermal power plant.
$II.$ More than $99\, \%$ particulate matter can be removed by this method.
$III.$ $ESP$ has electrode wires and a stage of collecting plates.
Which of the statements given above are correct?

In a eutrophic water body,the excessive growth of $\underline {X}$ leads to the death of $\underline {Y}$.

What is used to remove particulate matter from industrial exhaust?

Which of the following is not a pollutant?

$SO_{2}$ pollution is indicated by