(PLS HELP DUE IN 5 MINS) examine the graph below showing a comparison of transportation and emission trends in the united states over the years 1980-2015. which statement best describes the trend for the six common pollutants, as shown in the graph? a) the clean water act addressed the six major pollutants that were damaging the ecosystems.
b) the decline in vehicle miles traveled and US population correlates with a drop in air pollution
c) the 1990 amendments to the clean water act addressed the sources of acid rain, smog, and toxic air pollutants
d) a conversion to 100% renewable resources for energy harnessing and electricity production caused a reduction in air pollution