Question

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Answer 1

The Equator is at 0°, and the North Pole and South Pole are at 90° north and 90° south, respectively. The Equator is the longest circle of latitude and is the only circle of latitude which also is a great circle.

Answer 2

1) A great circle is defined as any circle drawn on a globe (or another sphere) with a center that includes the center of the globe. Thus, a great circle divides the globe into two equal halves. In addition, great circles represent the shortest distance between two points anywhere on the Earth's surface.

2) The Equator is at 0°, and the North Pole and South Pole are at 90° north and 90° south, respectively. The Equator is the longest circle of latitude and is the only circle of latitude which also is a great circle.

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