Question

What is the prime meridian? why it is important

Answer 1

The prime meridian is the imaginary line that divides Earth into two equal parts: the Eastern Hemisphere and the Western Hemisphere. The prime meridian is also called the Greenwich meridian. The value of the prime meridian line is 0 degree. The prime meridian line runs in Greenwich, London, and England.

It is important because:
• It is the starting point for the measuring system called longitude.
• The prime meridian is also used as the basis for the world’s time zones.