Cap-and-trade is a system that . allows industries to set their own levels for pollution emission so trading can continue has been repealed by Congress as useless in diminishing pollution specifies a certain cap on industrial pollutants that can be traded to other nations allows industries that pollute at levels below the federal cap to sell their extra permits to industries that pollute at levels above the cap rapidly brings pollution emissions to near zero for participating industries

D. allows industries that pollute at levels below the federal cap to sell their extra permits to industries that pollute at levels above the cap.

Explanation:

Cap and trade is a program designed by the government to cap the emission of pollution. It is a regulatory program of the government that sets a cap or limit on the total level of pollution that a company is permitted to emit. It is a program designed to reduce the pollution level in the environment.  

Under this cap and trade program, the companies who emit more than the level of federal caps are bound to pay taxes, while companies who emit under the federal cap are permitted to trade or sell their unused credits or extra permits to other companies.

Therefore, option D is correct.

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