Air Pollution : paragraph

 Write a paragraph on ' Air Pollution ' based on the answers to the following questions . 

( a ) What is air pollution ? 

( b ) How is air polluted ? 

( c ) What are the main reasons of air pollution ?

 ( d ) What are the demerits of air pollution ? 

( e ) How can we solve this problem ? 

Ans .  Air is the most essential element for our life and environment . Without it , our existence is impossible . Air pollution means the contamination of this essential element of nature .

 It is human being who is responsible for polluting this element . 

Air is polluted in many ways . The major gaseous pollutants of air are carbon dioxide , carbon monoxide , nitrogen dioxide , sulphur dioxide , hydrogen sulphide , fumes of acids , paints , smoke etc. Major solid pollutants of air are dust , particles of unburnt carbon , lead , cement etc. 

Air pollution mainly occurs in cities and towns , especially in the industrialized ones . A large number of factories are actively responsible for polluting air .

 Carbon dioxide is the chief cause of air pollution . The burning of trash , diesel and other chemical substances in cars and vehicles produces a huge amount of carbon dioxide and other harmful gases every day and pollutes air . 

The cutting and burning down of trees , trash , and the discharge of human waste in the open air also pollute air . Polluted air is very harmful to all beings . 

It is a dangerous threat to our existence . By inhaling polluted air , we suffer from various diseases such as cancer , bronchitis , heart diseases , etc. So , in order to prevent pollution we should plant more trees .

 We should use CNG instead of petrol and diesel . We must not throw trash and waste in the open places . Mills and factories should not be allowed to be set up in residential areas .

 Above all , public awareness should be raised .