What was one impact of westward expansion in the United States during the mid-nineteenth century?

A decline in Native American populations in the region.

Explanation:

Native Americans were being exposed to and wiped out by diseases from settlers. They were also targeted. Gold was also discovered and big boom towns sprang up.

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so. 

the government paid religious orders to provide basic education to native american children on reservations. in the late 19th and early 20th centuries, the bureau of indian affairs (bia) founded additional boarding schools based on the assimilation model of the off-reservation carlisle indian industrial school.