What physical feature is formed as tectonic plates are pulling apart? Lakes and falls
Mountains and plateau

Why is it useful for historians to base certain studies on the analysis of historical periods

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.

When and why did the united states enter world war 2