HOW MANY SOURCES OF POLLUTION ARE MENTIONED IN THE PASSAGE

Question

Câu 1: How many sources of pollution are mentioned in the passage?

Accepted Answer

Phần trắc nghiệm đáp án A đúng Reading Câu 1: There are three sources. They are acid rain, car exhaust fumes and oil spills. Câu 2: Because it contains sulphuric dioxide and nitrogen oxide, which com....

HOW MANY SOURCES OF POLLUTION ARE MENTIONED IN THE PASSAGE

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