Overall number of "patriot" groups has risen from 149 in 2008 to __________ in 2012.

The Guttman scale measures how well data fit into a

A) combination. B) hierarchical pattern. C) likert rating. D) All the above

Under the provisions of the Clean Air Act of 1970, who was given enforcement responsibility for air quality standards?

A. the Department of Energy B. the states C. the Environmental Protection Agency (EPA) D. local governments E. the Department of the Interior