Which of the following is best supported by the passage?

A.To effectively control pollution, local government should regularly revise the air pollution laws. B.One of the most important steps in preserving natural lands is to better enforce air pollution laws. C.Scientists should be consulted in order to establish uniform. limits for all air pollutants. D.Human activities have great impact on air pollution.

时间:2023-10-05 10:20:38

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