Explanation:
heyyy, from venezuela. how are you?
Answer:
formal region is an area inhabited by people who have one or more characteristics in common. ... Examples of formal regions are Europe, Africa, United States, and Canada. Functional Region. A functional region is an area organized to function politically, socially, and economically as a single unit.
B, both in real history and this chart, America created the first atomic weapons, and Russian spies during WW2 wanted to have the advantage of such power, lest America have a monopoly on pure Force.
<span />
Until the early Proterozic there were only negligible amounts of free oxygen in the atmosphere
