Online Sessions
Pollution

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Course Descprition :
Pollution is when something is added to the environment harmful or poisonous to all living things. Smoke or dust in the air is a type of pollution . Sewage in drinking water is another type of pollution, containing germs and viruses. There are 3 kinds of pollution: water pollution, land pollution, and air pollution.
Language : English
Categories : Intermediate (B1 Level Topics)
CEF : A1A2B1B2C1C2
Duration : 30 minute
Session : Online Discussion
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