How did the u. s. military recruit the 4 million americans who served during world war 1?

Which choice describes some of the difficulties john adams faced as presidet

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.

Why did reagan have the united stars invade grenada