Summer was located in a region called
a. mesopotamia
b. north africa
c. india
d. southeast asia

b]to spread the message of black power

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.

b europeans take corn to africa. corn becomes an important crop there.

climate change is the big reason to the decline of the indus valley which also caused floods. so i dont know what answer would best fit the description thats just what i found online! have an awesome