when the observed difference between the means of an experimental group and control group are not likely due to chance, researchers conclude that this difference is

One of the great societal changes brought about by industrialization in europe was a. slavery. b. urbanization. c. ruralization. d. democracy.

As with any small island country, cuba has fewer natural resources than countries such as brazil. this affects their economy in that cuba a) exports only manufactured products. b) exports more products than it imports.. c) must import more products than it exports. d) has imposed trade barriers against the united states.

These facilities were organized and sponsored by churches or charities during the great depression in an effort to feed the homeless and needy.