Which of the following is best supported by the passage?
Câu hỏi :
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
A. One of the most important steps in preserving natural lands is to better enforce air pollution laws.
B. Scientists should be consulted in order to establish uniform limits for all air pollutants.
C. Human activities have been effective in reducing air pollution.
D. To effectively control pollution, local government should regularly review their air pollution laws.
* Đáp án
* Hướng dẫn giải
THông tin ở đoạn đầu tiên: “When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today.” (=Human activities have been effective in reducing air pollution
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