What were the roles of African Americans during the Revolution?*
2

How does cloud cover affect how much infrared light is reflected back to the ground?

Which of the following was not a result of early humans increasing proficiency at finding food

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.