C) The western expansion spread the U.S population over a wider area.
If refineries did not exist cars would not be able to move. A car needs a thinner more combustible fluid than crude oil to move. Oil must be refined into gasoline in order for cars to use it.
Answer:
Dubai
Explanation:
I don't know if I'm right tho
Answer: geographic skills are important because you need to be able to like understand weather and how the earth can react to things. For instance if your on a cliff you might not want to jump up and down on it because some rocks could brake off and cause a rock slide.
Hope I helped!