Human beings in the 21st century have brought about brilliant changes in all areas of life. He has reached many heights of success on the strength of his own intellectual power. After the industrial revolution, there were great changes in the standard of living and living conditions. Due to industrialization, modernization and insatiable desire for material pleasures, hoarding and selfish tendencies of man etc., the natural resources and resources of the world are being put under tremendous strain. Due to the excessive use of scientific research and the desire for material happiness, human beings have disturbed the cycle of nature itself. Therefore, today humans are facing various serious problems. Mainly, various types of pollution can be noted - depletion of natural resources, permanent loss of animal species, various species of plants from the earth, precipitation, drought, global temperature rise etc. In the near future, the population is going to grow even faster and the needs of man are going to increase even faster. Pollution will be the biggest problem of the 21st century.