Mark the letter A, B, C or D to indicate the correct answer to each of the following questions

Câu hỏi

__________ is mainly caused by waste gases that come out of vehicles, machines or factories.

A. Water pollution

B. Air pollution

C. Noise pollution

D. Soil pollution

Đáp án
B. Air pollution

Câu hỏi thuộc Bài tập:

UNIT 9: PROTECTING THE ENVIRONMENT - VOCABULARY AND GRAMMAR (1) - Bài tập Tiếng Anh lớp 10 - Global Success