Men are throwing waste into water. The farmers all over the world are using pesticide and chemicals which are mixing with water directly and thus water being polluted.
All over world men are destroying forests and cutting trees. As a result, carbon dioxide is increasing. Besides, industries and motor vehicles emit huge columns of smoke in the air. Resultantly air is polluted.
Sound pollution is another hindrance to a calm and serene life. Motor vehicles, sound of mills and factories, loudspeakers etc. cause sound pollution.
All types of pollution cause a lot of harm to mankind. They cause bronchial injuries, burning sensation in eyes, damages lungs and also caused some incurable diseases. Besides, they create health hazards to a greater existent. So, many effective and positive measures should be taken to prevent pollution.