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| Term | Definition |
|---|---|
| Longitude | the angular distance of a place east or west of the meridian at Greenwich, England, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes. |
| Latitude | the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes |
| Map legend | explanatory table of symbols used on a map or chart |
| Map scale | a ratio which compares a measurement on a map to the actual distance between locations identified on the map |
| Absolute location | Absolute location describes the location of a place based on a fixed point on earth |
| Relative location | a point or place in relation to another point or place |
| Parallels | an imaginary circle on the earth's surface formed by the intersection of a plane parallel to the plane of the equator, bearing east and west and designated in degrees of latitude north or south of the equator along the arc of any meridian. |
| Meridians | a great circle of the earth passing through the poles and any given point on the earth's surface. |
| Hemisphere | a half of a sphere |
| Equator | the great circle of the earth that is equidistant from the North Pole and South Pole |
| Prime meridian | longitude east and west is reckoned. |
| North pole | the end of the earth's axis of rotation, marking the northernmost point on the earth. |
| South pole | the southern end of the earth's axis, the southernmost point on earth. |