Viết đoạn ngắn về chủ đề pollution in vinh city

Air pollution is very dangerous for people. There are two problems of cause and effect. As for the cause, many vehicles emit smoke and dust into the environment. Besides, factories pour poison out. Ultimately, people litter the environment, such as parks, beaches, schools and even on the go. In terms of effects, first, people can get many respiratory diseases. Second, humans cannot live long because of lack of oxygen. And finally, it will destroy the ozone layer and make it easier for the sun's rays to pass through the Earth. I think we should protect the purity of the air before it's too late.