What is the name for the circle that runs north to south and passes through greenwich, england?
equator
odd meridian
time zone
prime meridian
Lines of longitude are circles that go around Earth from pole to pole, like the sections of an orange. Longitude is also measured in degrees, which are subdivided into minutes and seconds. Lines of longitude start at the Prime Meridian, which is 0°. The Prime Meridian is a circle that runs north to south and passes through Greenwich, England. Longitude tells you how far you are east or west from the Prime Meridian ( Figure below ). On the opposite side of the planet from the Prime Meridian is the International Date Line. It is at 180°. This is the place where a new day first arrives.