Why did the world's first civilizations develop in river valleys?

Which answer best explains the overall impact of the chicken on native american populations in the new world? negative; it destroyed much needed grain crops neutral; it was not well adopted by native americans insignificant; other animals were more quickly accepted positive; it brought a good source of protein to the native american diet

What is the southernmost fort in what is today western ohio? what city is there today

In terms of territory won in the french and indian war, which of the following is a true statement? a. england won the most territory as a result of the war. b. france won the most territory as a result of the war. c. spain won the most territory as a result of the war. d. england, france, and spain all won an equal amount of territory as a result of the war.