Ok so.. my question is that, couldn't the asteroid that killed the dinosaurs be a ufo.. and humans are the aliens? think about

In the mid-1800s, how did american indians often react to the us government signing treaties with tribal chiefs to establish reservations? many american indians did not accept the treaties and resisted relocating. many american indians fought for land taken away by the dawes act. many american indians bought land in oklahoma from white settlers. many american indians accepted the treaties and relocated voluntarily.

Which letter correctly labels the mississippi river? a b c labeled map of the mississippi river and surrounding regions.

The factory system of the early-19th century caused a) a decrease in farm production. b) an increase in rural population. c) an increase in urban population. d) high unemployment in other areas.