WHY IS SMOKE FROM FACTORY CHIMNEYS HARMFUL TO OUR ENVIRONMENT

Question

Câu 2: Why is smoke from factory chimneys harmful to our environment?

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....

WHY IS SMOKE FROM FACTORY CHIMNEYS HARMFUL TO OUR ENVIRONMENT

Bạn đang xem câu 2: - DE THI HKII