Fill in the blanks:

(a) The pollutants such as NO₂, SO₂ and SO₃ dissolved in the moisture of air are the cause of ……………

(b) Excessive release of carbon dioxide in the atmosphere is the cause of …………… effect which produces global warming.

(c) Ozone layer prevents the harmful …………… radiation of the sun to reach the earth.

(d) Decrease in the concentration of ozone in the stratosphere is the cause of the formation of …………… holes.

(e) Ozone depletion is mainly caused by the active …………… atoms generated from CFC in the presence of UV radiation.

Name any two :

(a) natural sources of atmospheric pollution.

(b) gases which are responsible for the formation of acid rain.

(c) particulate pollutants.

What is a pollutant ?

What do you understand by ppm ?