Relative location: a point or place in relation to another point or place
Absolute location: a point on Earth's surface expressed a coordinate system such as latitude and longitude.
Equator: the great circle of celestial sphere whose plane is perpendicular to the axis of the Earth.
Latitude: is an imaginary line around the Earth, parallel to the Equator
Longitude: is the angular distance between a point on any meridian and the prime meridian at Greenwich
Prime meridian: meridian at zero degrees longitude from which east and west are reckoned

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