December 21, 2020 will be one of the four special days of the astronomical calendar related to seasons. On this date, at what latitude on Earth is the Sun located at the zenith at noon? Give your answer both in degrees as well as the special name given to this Earthly latitude.

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years

Cause of he different elevations  hope this ?