Nowadays, one of the biggest problems that seriously affect our lives is pollution. There are many kinds of pollution: air pollution, light pollution, water pollution,... They all cause a lot of unimaginable damage to our health and our habitats. In VietNam, air pollution occurring as a result of gas emissions from factories, vehicles,... Another dangerous kind of pollution is water pollution, it is caused by littering waste and poison into lakes, rivers. Toxins in the water and poisonous gas in the air have caused the deaths of many humans and animals. To prevent this, we should try to protect and preserve the environment.

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