Answer:
<u>command</u> economy
Explanation:
The black market is most active in a <u>command</u> economy.
Social change is not both planned and unplanned
US history tries to make the white man look like the good guy and hide minority struggles.
Answer:
A. development of automobiles with lower nitrogen oxide and hydrocarbon emissions.
Explanation:
This act implements a comprehensive program to reduce air pollution to protect human health and environment, the amends made in 1990 focused on problems of acid rain, ozone depletion, and toxic air pollution, they established new auto gasoline reformulation requirements and set the Reid vapor pressure standards to control evaporative emissions from gasoline.
A. is the answer
Please mark me as brainliest. I need 1 more to level up.
