There are several causes of air pollution. In this modern age of science we use a large numbers of vehicles such as buses, cars, trucks, etc. which leave out a lot of smoke and other harmful gases into the atmosphere and cause air pollution. In the name of industrial development a lot of mills and factories have been set up. These industries spew dense smoke along with other harmful gases through their chimneys and pollute the air. Air Pollution Essay Outline : Importance of air-causes of air pollution its affects - ways of preventing air pollution-human life and pure air. Life on earth would be impossible without air. A man can live without food for a month, without water for two or three days, but he cannot live without air for a minute. There lies the importance of air. Oxygen is a useful gas. But carbon dioxide, carbon monoxide and some other gases are harmful to human life. When the oxygen level gets reduced and harmful gases increases in the atmosphere, air is said to be polluted...

Nandankanan is situated a few kilometers away from Bhubaneswar. There is a zoo here. It is managed by the Forest Department. It is an interesting place. It attracts a large number of people every day. Last year I went there with my uncle. My younger brother also accompanied us.                                A VISIT TO A ZOO Outline: Name and place-animal and birds- enjoyments of the visit-your feelings-usefulness. Nandankanan is situated a few kilometers away from Bhubaneswar. There is a zoo here. It is managed by the Forest Department. It is an interesting place. It attracts a large number of people every day. Last year I went there with my uncle. My younger brother also accompanied us. I saw different animals inside the zoo. Wild animal like lions, tigers and bears were kept in cages surrounded by big steel bars. Just at our sight the wild animals roared. I was frightened when a leopard rushed at me. But ...

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