In congress dramatically revised and expanded the clean air act, providing epa even broader authority to implement and enforce regulations reducing air pollution emissions. these amendments also placed an increased emphasis on more cost-effective approaches to reduce air pollution.

The correct answer is: In 1990, Congress dramatically revised and expanded the Clean Air Act, providing EPA even broader authority to implement and enforce regulations reducing air pollution emissions. (...)

Explanation:

On November 15, 1990 the Clean Air Act was revised in a major effort to strenghten and help ensure better compliance with the Act. The 1990 Amendments were designed to have better response to 4 threats to the environment: acid rain, toxic air emissions, urban air pollution and stratospheric ozone depletion.

well first we can compare on what the slave masters ate and what the slaves ate well the masters ate fancy great food like chicken rice mash potatose and stuff like that and slaves ate well food that your not suppost to eat like the weird parts of turkey and chicken and slaves master chilled beat and eat and slaves work get beat and get little of sleep there you go