The modern man in the name of progress has interfered too much with nature. As a result, environment has become polluted. Step by step, the precious gifts of nature are being destroyed. There are three kinds of pollution such as:
Air pollutions- Air pollutions are mostly caused by smoke coming out of the chimneys of factories, mills or workshops etc. Air pollutions may cause lung diseases, asthma, eye flu, headache etc.
Water pollution- Water is the basis of life but greed of man to get more and more money pollutes it. The owner of industries dump waste materials on the surface of earth or in rivers, lakes, ponds etc. Thus water is polluted. People uses this polluted water and invite a number of diseases.
Noise pollutions- Noise more than that of 80 decibels is said to cause deafness and some other diseases. In large cities the roar of vehicles is unbearable. Their engines and horns create noise pollutions which is harmful for people’s physical as well as mental health.