Answer:
The most important or primary crop of the Great plains is wheat
The Great plain saw occupation from thousands as a result of the Homestead Act and the Morrill Act
A great number of industries rely on the Great plains farm
Explanation:
The Great plains is one of the best farmlands in the world, accounting for a great percentage of wheat export in the world. The Great plains saw high level of settlement after the homestead act and Morrill act of 1862 where the newly acquired western territory of America allowed acquisition of land westward. As a result thousands of Americans, including newly freed slaves were allowed to acquire up-to 160 acres of land in this area and settle. This was where the Great Plains was located. The Morrill act also allowed western states acquire land here to build schools and develop the area.
The shells are evidence that the Indus Valley had some connection with coastal people. The canal is evidence that Indus Valley people may have used boats to transport themselves and trade with people in coastal cities. I hope i helped <3
The correct answer would be, "The growing feudal system prevented internal political conflict and stopped northern invaders from threatening China." The Zhou Dynasty began alongside the rise of the Iron Age, this immediately increased the power of the Zhou military.