When testing the effect of noise on the performance of a task, marco tests half the participants in a cool, quiet room and the other half in a hot, noisy room. in this case, what confounding variable has marco failed to eliminate_

How did world war i contribute to the events leading up to world war ii? (a)germans wanted to expand their nation to regain territory in the soviet union. (b)britain and france wanted to force germany to make reparation payments. (c)germans hated the versailles treaty and supported hitler's actions to defy it. (d)the soviet union wanted to take over german territory in eastern europe.

Which european country lost control of lebanon and syria-their middle east mandates-in the 1940s? a) britain b) france c) germany d) italy

All living things share certain characteristics. which of the following characteristics is not shared by all living things?