Suppose you start at Washington, D.C. (39N, 77W), and travel 400 nautical miles due south, then 400 nautical miles due east, then 400 nautical miles due north, and then 400 nautical miles due west. Where will you arrive with respect to Washington, D.C.? That is will you be at the starting point, or north, south, east, or west of the starting point?
Question 2
The region of the electromagnetic spectrum with frequencies just less than those in the visible region is the ______________ region.
a. infrared
b. gamma rays
c. radio waves
d. microwaves
e. x-rays
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Mosaic image of the lunar south pole of the Moon
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