Помогите,пожалуйста,сложить предложения.
1) of, kind, the, region, in, what, is, dangerous, pollution, most, your ?
2) source, is, the,of, what, the, pollution ?
3) cause,health, can, what, it, problems?
4) do, stop, people, what, pollution, to, can, the ?

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1) What is the most dangerous kind of pollution in your region?2) What is the source of the pollution ?3) What health problemsit can cause ?4) What can people do to stop the pollutioin ?