How did President Nixon's management of the presidency contribute to his eventual resignation from office?

The folsom culture was replaced by the plano culture. clovis culture. american indian culture. paleo-indian culture.

How did disease impact the human death toll during this time period? disease killed more people than combat during this time. disease steadily increased as the war hospitals were attacked. improvements in medical technology decreased illness overall. disease was a small but significant contributor to deaths at this time.

How was louis and clark expedition event unfolding and what was going on