Central plain of north america is boon for the american people?how? describe in short

In the 1800s, most european powers followed policies of in which they imposed political and economic control of peoples around the world. a. imperialism b. expansionism c. mercantilism d. isolationism

97 points what types of changes have been made in the united states to protect people from earthquakes? a. communities are no longer located along fault lines. b. building codes ensure that structures can withstand shaking. c. warnings go off when an earthquake is expected, and people evacuate the area. d. barriers have been built to prevent flooding by a tsunami.

Which fundamental freedoms do citizens of both washington and the united states have in common freedom of education freedom to assemble freedom of earnings freedom of religion freedom of speech