Hey i need help with social studies, the ancient greeks

When children heard an interesting story about a sympathetic and resourceful african-american child, the aim was to provide them with?

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.

The biggest component / ingredient of summer time smog is