how has the epa improved air quality over the last 30 years?\n○ by monitoring pollutants and passing…

how has the epa improved air quality over the last 30 years?\n○ by monitoring pollutants and passing regulations to reduce air pollution\n○ by decreasing soil erosion and dust storms\n○ by building marine refuges to help protect marine life and reduce air pollution\n○ by decreasing of fossil fuel use in motor vehicles and industry

how has the epa improved air quality over the last 30 years?\n○ by monitoring pollutants and passing regulations to reduce air pollution\n○ by decreasing soil erosion and dust storms\n○ by building marine refuges to help protect marine life and reduce air pollution\n○ by decreasing of fossil fuel use in motor vehicles and industry

Answer

Brief Explanations:

The EPA (Environmental Protection Agency) improves air quality mainly through monitoring pollutants and implementing regulations to reduce air pollution. Decreasing soil erosion (second option) is not directly related to air quality improvement by EPA. Building marine refuges (third option) is for marine life, not air quality. The EPA doesn't directly decrease fossil fuel use (fourth option) but regulates to encourage reduction, while monitoring and regulation (first option) is a core function.

Answer:

A. by monitoring pollutants and passing regulations to reduce air pollution