What was the cause of the crusades?

How did industrial production improvements impact export-dependent areas of the world during the great depression?   a.  demand for certain raw materials rose.      b.  demand for certain raw materials fell.      c.  the new technology was exported to most raw material producing nations.      d.  there was a decrease in tariffs.

I’m annoyed but glad that my history teacher left and quit her job as a teacher to become a flight attendant

What factors allowed philip ii of macedonia to conquer the greek city-states?