27. Which of the following is a powerful way to reduce pollution using market incentives alone?

Group of answer choices

Federal Water Pollution Act of 1972

corporate average fuel economy model

The Clean Air Act of 1970

Closed-loop model

the cap and trade model

16. Sustainable economy acknowledges that energy is lost at every stage of economic activity. Eventually the amount of usable energy decreases over time. This claim is consistent with _______________________.

Group of answer choices

neoclassical economics

none of the options given

law of conservation of matter and energy

the first law of thermodynamics

law of entropy