Question

What were three effects of westward expansion in the United States during the mid-nineteenth century?

Answer 1

1. It had negative effects on Native Americans. Their land and livelihood were taken from them by the new Americans.
2.  The westward expansion more than doubled the size of America.
3.To many, the expansion of slavery into the west caused controversy between the north and south. The problem of slavery was one of the biggest issues of the 19th century.