The six pollutants regulated under the clear air act between 1970 and 2001, while energy consumption increased 42%.

Answer

The six pollutants regulated under the clean air act are;

•Carbon monoxide

•Ground-level ozone

•Lead

•Nitrogen oxides

•Particulate matter

•Sulfur dioxide

Explanation

According to the Clean Air Act (CAA) it requires the Environmental Protection Agency to set National Ambient Air quality standards. These standards are primarily set for human health and secondary for protection of the public welfare including effects on vegetation crops, and infrastructure. Some of the methods employed to reduce air pollution include control technologies and control measures.

d. the weight of the book