Question

Which of the following was a success of the Clean Air Act?(1 point)
Responses

No additional Clean Air Acts had to be passed after 1970.
No additional Clean Air Acts had to be passed after 1970.

There are no environmental issues left to research.
There are no environmental issues left to research.

Although the U.S. gross domestic product increased, the amount of emissions decreased.
Although the U.S. gross domestic product increased, the amount of emissions decreased.

The U.S. gross domestic product decreased, which allowed the amount of emissions to decrease.

The correct response would be:

"Although the U.S. gross domestic product increased, the amount of emissions decreased."

This represents a success of the Clean Air Act, as it indicates that environmental protection measures can coincide with economic growth. Despite an increase in economic activity, emissions were controlled and reduced, which suggests that the regulations put in place by the Clean Air Act were effective in curbing pollution without stifling economic expansion.