What was the idea that residents should vote for or against slavery in new states?

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.

Prices for products became more affordable as a result of new forms of ,witch got things to market faster and cheaper

Prehistoric times ended with what key event in history? the arrival of the european explorers the end of the second ice age the beginnings of settled village life the introduction of the cultivation of corn