Trivia: What line is located at 0 degrees longitude?
Prime meridian
Equator
International date line
Tropic of Cancer
Correct Answer: Prime meridian
So why is this answer correct? : The prime meridian, which runs through Greenwich, England, at 0 degrees longitude is the line that separates Earth’s Eastern and Western Hemispheres. The longitudinal location of any other place on Earth is measured in terms of its east-west distance from this line, which is also the reference point for Greenwich Mean Time.