Because of the concerns of the public about pollution, richard nixon established:
the nixon doctrine,
the federal trade commission,
the environmental protection agency, or
the new federalism

Richard Nixon established the Environmental Protection Agency, because of the concerns of the public about pollution

the best description of postwar writers might be progressive.

following the war, writers showed a tendency to work on artistic or social matters rather than political themes. while postwar literature may not have been the greatest period of english literature, the themes provided excellent critics a high number of novels. such examples include anthony burgess, anthony powell and frank kermode, all of which can be placed under the progressive view.

the answer is states.