To draw a map of the round earth on a flat surface, Cartographers use map projections. There are several ways it can be done, but every type of projection distorts reality in some way. Scientists use a Tissot's indicatrix to quantify distortions that are introduced when creating a map
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For context, do you need it in point form as most of the info is presentable in that format
A)Developed new medical practices
Nazi Germany and the Soviet Union had a non aggression pact. When Germany's attempt to conquer England failed Hitler turned his attention to the Soviet Union. When Germany broke the treaty with the Soviet Union the Soviet Union asked to join the Allies in the fight against the Axis Powers.
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