The Clean Air Act was the major legislation passed to control air pollution in the United States.
Hi there!
The source of the Rhine River is in the Swiss Alps. The two main sources, which are in the Alps, are Vorderrhein and Hinterrhein rivers.
Brady
LDC or LEDC for less economically developed countries (if that's what you where looking for)
A. the air. All the other choices don't make sense.
3 looks like the best option