Which technology was most important in ending world war ii

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.

How did german physicist werner heisenberg's uncertainty principle shake beliefs in newtonian physics?

Why was russia drawn into a conflict with germany after ausria-hungary declared war on serbia ?