The reference point for longitude is
A) the Equator.
B) the Prime Meridian.
C) the Tropic of Cancer.
D) the International Date Line.
E) There isn't one.

Question

Quizplus · Accepted Answer

The Prime Meridian, which runs through Greenwich, England, is the reference point for measuring longitude. It is designated as 0 degrees longitude and all other longitudes are measured either east or west of this line.

The Reference Point for Longitude Is