What is the most expensive mandatory spending program for the federal government? A. Medicare B. education C. Social Security D. public transportation

Water and soil are brought into the indus river valley as a result of a. high winds b. annual floods c. long droughts d. seasonal tornadoes

New communication technologies, improved transportation, and advanced military weapons made it possible for countries to speed up acquiring territory. rule large amounts of territory. fight off competition from opposing nations. expand their economies, which aided in conguest.

What caused the settlement of more african americans in the mississippi alluvial plain region then in the ozark mountains region?