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Trong pha đèn Hải đăng người ta sử dụng loại gương gì ? vì sao người ta sử dụng loại gương đó? Giúp mik vs ạ Mik c.ơn
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Bài 1: rewrite the sentences, using the words in brackets. You can make some changes 1, There are asthma, allergies and other respiratory illnesses when air pollution happens.(leads to) 2, Aquatic life suffers or dies beacause there is thermal pollution. (because of ) 3, Water in the Cau River becomes brown and has terrible smell because the waste water is released from the paper mill in Thai Nguyen City. (so) 4, People use too much herbicide to treat weeds, so water in rivers, canals, lakes are extremely polluted and has bad effects on people's health. ( because) 5, Many fish in the river die due to the increased temperature of water. (because) 6, Because plastic bags take so long to decompose, nearly all of them still exist in the enviroment today. ( so) 7, Since air pollution is a threat to human health, everybody should try their best to reduce it. (so)

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