Write a paragraph on Environmental Pollution for class 7,8,9,SSC and HSC in 150,200,250 and 300 words

The environment refers to the air, water and land in which people, animals and plants live. Human beings, animals, plants, air, water and soil are the main elements of the environment. These elements should be pollution free for our healthy living. But when they are polluted and their essential balance is disrupted, it is called environmental pollution. Nowadays, almost everywhere, our environment is getting polluted. In many places of our country, the environment has become extremely polluted. We, ourselves, are responsible for this situation. Industries and factories emit huge amount of smoke, gases and fume. Motor vehicles also emit large amount of smoke and gases. All these cause air pollutions. Water is polluted from the dumping of industrial wastes and by chemical fertilizers and insecticides. Due to the indiscriminate use of vehicle horns, loudspeakers, microphones, etc. sound is polluted. Soil is polluted by harmful chemical fertilizers, pesticides and insecticides. Trees play an important role in the environment. Trees absorb carbon dioxide and produce oxygen. Thus, they save the environment. But trees are being cut down for different commercial purposes. This needs to be stopped for the sake of keeping our environment healthy. Environment pollution is a great threat to our existence. It changes the world's climate and brings about different kinds of natural disasters. Thus, the world is getting unsuitable for living. To make life healthy and comfortable, we should keep the environment clean and pollution free.

Harmful contamination of anything is called pollution. All our surroundings for including air, water, soil, trees, animals, etc. make up our environment. When the normal relations among these elements of nature are disturbed, the ecological balance is hampered, and it is called environmental pollution. It is a pity that the main elements of the environment which are essential for all living beings, are being polluted in many ways. Men are responsible for environmental pollution. Their inconsiderate activities are accelerating environmental pollution. The smoke from factories and motor vehicles contains harmful substances like carbon monoxide and Sulphur dioxide. These have hampered the cleanliness of the air. Mills and factories set up by riverbanks let out chemical wastes in the river water. These poisonous substances are destroying the plants and creatures of the waterbodies. Pesticides and chemical fertilizers used in agriculture are also polluting water. When people drink this water or take a bath in the polluted water, are attacked with stomach and skin diseases. Due to air pollution, carbon dioxide in the atmosphere is increasing which causes climate change. Due to climate change, various natural calamities such as storm, cyclone, flood, drought, heat wave, etc. are increasing day by day. Environment pollution can be rooted out by taking different measures. We may increase afforestation. If trees are planted in large numbers, we can be benefited in different ways. Trees also increase rainfall and prevent air pollution. Laws should be passed to prevent factories from dumping wastes into rivers.