Spanish conquistador Francisco Pizarro invaded the Incas in 1532. Him and his men plagued the inca members with disease and war.
Yes I think the answer is B concrete.
Irrigation of crops led to salinization of the soil, Sumer was located on a flat plain that provided no natural barriers to invasion, and the land became too swampy to grow adequate crops.
Answer:
false
Explanation:
the tomb was made for the unknown soldiers.
The Quakers founded Harvard university in 1636