Why is the pollution different in different parts of the same city?

why air pollution is the most serious? Why is the pollution different in different parts of the same city? Why is the pollution different in different parts of the same city?请用英语回答谢谢 The pollution in Lijiang is very few. Whether ways will be found to stop pollution or not is just____worries the publicA,why B,which C.that D,what . 这个题目选D为什么啊. the pollution of SO2 is now the most dangerous problem of air pollution it is （t ）the pollution is worse and worse Why the answer is the reson.why..is 用英文回答what is the cause of water pollution? The air is filled with pollution同义句 Pollution is a big p___ for the party The local government is making a s___ of river pollution Lt is true that a____ pollution is still the most s___ now,but it is only one kind of pollution. Who do you think is more responsible for pollution,individual people or the government?Why?second question:How can we protect the environment and at the same time improve people's standard of living?please speak English.Thank you! 求修改英语作文Pollution of EnvironmentPollution of EnvironmentIt is common that Our living conditions for the destruction of the environment and become more and more serious.why does such circunmstance occur in spite of social protects?For one Why is the river rich? why the sky is blue?