Help pls an ty mk

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.

What are the cultural characteristics of mexico?

What caused the settlement of more african americans in the mississippi alluvial plain region than in the ozark mountains point)