The correct answers to these open questions are the following.
1. Explain the impact of Westward Expansion on Native Americans.
The Westward Expansion devastated the Native American Indians. The expansion removed the Indians from their original territories. White settlers started to occupy their territories under the protection of new legislation passed in the United States Congress. Farmers and miners settled in the Plains took the Indian's lands away and hurt Indians because they could not hunt animals in their former territories.
Indians tried to react and defend themselves by attacking the white settlers' homes, and wagons but their actions were limited.
2. How did government policies such as the Homestead Act, Dawes Act, and Reservation system impact Native Americans?
All these legislations were enacted to take lands away from the hand of the Native American Indian tribes. The lands, large portions of land, were given to white settlers in order to exploit the many raw materials and natural resources. What the white settlers wanted was to inhabit those territories and make big profits.