Think about the last purchase you made at a store. Did you know that when you made that purchase, you actually helped the economy to grow? How did your purchase do that?

very positive impact on our industries in the west, sine they promoted settlement and increased the ways in which goods could be transported to market.  

i am 99% sure that the increase of goods was because of nafta nafta stands for the north american free trade agreement to lift tariffs

the lines on a surface map are called isobars. isobars are lines of constant pressure which are measured in units called millibars. the numbers indicate the amount of air pressure, in millibars, that each line represents.