Answer:
Manifest Destiny brought money, land, resources, and a strengthened economy to the Americans. There were also negative effects of Manifest Destiny. The negative effect that this had on Native Americans were lasting effects. Manifest Destiny also caused war and tension with Mexico for the same reasons.
Westward Expansion generally had negative effects on the Native Americans. Native Americans were forced to live on reservations. The buffalo, an important resource, experienced rapid population decline. Military conflict between Whites and Native Americans resulted in many deaths.
Step-by-step explanation: