The enactment of the Clean Air Act of 1970 (1970 CAA) resulted in a major shift in the federal government's role in air pollution control. This legislation authorized the development of comprehensive federal and state regulations to limit emissions from both stationary (industrial) sources and mobile sources.
Letter C is the correct answer:D
Florence
The Italian city was home to the greatest thinkers and artists of the Renaissance.Some of the artists were Michelangelo and Leonardo Da Vinci.<span>Florence
became Italy's leading cultural center during the Renaissance because
it was centrally located and had great wealth, and was home to many of the
great thinkers of tile period.</span>
<span>Answer: It is based on a rectangle and has tall columns leading to a gently sloping roof. Images on internet show how Parthenon reflects balance and order in its architecture. </span><span> Its massive foundations were made of limestone, and the columns were made of Pentelic marble. It was a temple dedicated to the goddess Athena which main function was to shelter her monumental statue.</span>
