Environment refers to the air, water and land in which people , animals and plants live. So human beings, animals , plants , air , water , sun , soil , various natural forces etc . They are the elements of environment . But our environment is polluting . The disposal of various kinds of waste is seriously polluting the environment . Air which is important element of our environment is polluted by smoke . Man makes fire to cook food , makes bricks , melts tar for road construction and do many other things . Fire create smoke and pollutes the air . Bus, truck, cars , railway engines , power houses, mill factories all these emit smoke and smoke pollutes air . Man pollute water by throwing waste into it . Farmers use chemicals , fertilizers and insecticides in their fields . When rain or flood washes away some of them and mixes with water. Mills and factories also throw their poisonous chemical and waste products into rivers and canals , Water vehicles also pollute river by dumping oil , food waste and human waste into them . Sanitary latrines and drains standing on the rivers also pollute water . Sound pollution is another kind of pollution . Mam, animal, various kinds of vehicles , radio , television , cassette player, microphone , launch , streamer airplane etc. Are always producing sounds which are very harmful for general health . Environment pollution is causing great problem to men. Various diseases are being caused by it . We should make all aware about it and should take necessary step to control it.