Answer: The Plateau culture area comprises a complex physiographic region that is bounded on the north by low extensions of the Rocky Mountains, such as the Cariboo Mountains; on the east by the Rocky Mountains and the Lewis Range; on the south by the Blue Mountains and the Salmon River (excepting a narrow corridor to present-day California); and on the west by the Canadian Coast Mountains and the Cascade Range. It includes the watersheds of the Columbia and Fraser rivers.
Explanation:
It is the Yangtze River that is not a location of the first civilizations, since the other rivers on the list, especially the Nile and the Tigris and Euphrates were much more able to provide essential crop irrigation.
Answer:
the seventh century
Explanation:
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They did that because they thought that their citizens thout h\that they would be treated a secondary citizens.
The major obstacle to Islamic expansion in India was the presence of the Rajputs, a traditional patrilineal clan/warrior ruling class.