The line of 0° longitude is called the prime meridian (it is also known as the Greenwich Meridian).
The Prime Meridian
The meridian defined as the origin of longitude is the imaginary line joining the earth's north and south poles and passing through the Royal Observatory in Greenwich, England.
The Equator is 0 degrees latitude, and the Prime (or Grenwich) Meridian is 0 degrees longitude.
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They are called the lines of longitude. Lines of longitude range from 0 degrees on the prime meridian to 180 degrees.
They are called the lines of longitude. Lines of longitude range from 0 degrees on the prime meridian to 180 degrees.
No. 90 degrees longitude is not a major line of longitude. Only 0 and 180 degrees longitude, which are the Greenwich Meridian and the International Date Line respectively, are major lines of longitude.
Longitude lines measure how far (in degrees) you are East or West of the Prime Meridian (which is a longitude line that runs through Greenwich, England and is designated as 0° longitude).
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0 degrees longitude
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The prime meridian is a line at 0 degrees longitude.
The answer is equator
From north to south (Vertical) are the longitude lines From east to west (Horizontal) is latitude lines The first (0 degrees) longitude line is the prime meridian The first (0 degrees) latitude line is the equator hope this helps