5. Which of the followings is NOT true? a. Only big cities have theĐoạn văn14/1135. Which of the followings is NOT true? Only big cities have the problem of pollution. Traffic jams cause pollution Pollution is a major problem in big cities. Pollution causes health and environmental problems.Giải thích5. Đáp án A không được khẳng định trong bài đọc Chọn A