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Lines that circle the globe east-west
Measures how far north or south a point on Earth lies from the equator
Each degree is separated by approximately 111km
Equator: 0º (divides earth into Northern and Southern hemispheres)
North Pole: 90º N
South Pole: 90º S
Tropic of Cancer: 23.5º N
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Farthest northern latitude at which the
Sun may appear directly overhead
Tropic of Capricorn: 23.5º S
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Farthest southern latitude at which the
Sun may appear directly overhead

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Lines that circle the globe north-south
Lines becomes closer to each other at the North and South Poles
Measures how far east or west a point on Earth lies from the Prime
Meridian
Divides the earth in the Eastern and Western hemispheres
Western hemisphere coordinates are from 0 to 180º W
Eastern hemisphere coordinates are from 0 to 180º E
The Earth altogether is 360º
Prime Meridian is set at 0º & runs through Greenwich, England
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Sets the Coordinated Universal Time (time zones)
There are 24 times zones in the world (every 15º)