Question

What is prime meridian ?
Please help me on this question

Answer 1

the equator is the longest parallel so it was easy to choose equator as a reference line for the parellel . in the case of meridian too , a starting line had to be chosen .

Answer 2

Answer:

The Prime meridian is the 0-degree meridian. It passes through London and it sets the time around the world. It is an longitude