Why did american indians who lived in dry areas make knives from flint rather than slate?

What was an impact of the great depression on germany?       a.  people were more willing to turn to radical forms of government.      b.  people came to have more trust in democracy.      c.  germany was one of the few nations to grow its economy.      d.  germany collapsed and broke into three different countries.

How did the phillips brothers expand their businesses? by selling it to other businessmen by changing their source product by merging their companies by acquiring government support

Why was there so little resistance in the war from the german people?