Question

what is prime meridian​

Answer 1

Answer:

A prime meridian is the meridian (a line of longitude) in a geographic coordinate system at which longitude is defined to be 0°. If one uses directions of East and West from a defined prime meridian, then they can be called the Eastern Hemisphere and the Western Hemisphere.

Answer 2

The Prime meridian is the longitude of 0° that from north to south pole and passes through the Greenwich Observatory in London. All the timezones are classified as before or after the Greenwich mean time (GMT). It divides the earth as eastern and western hemispheres.

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