There are two -- the Prime Meridian -- 0 degrees, and the International Date Line -- 180 degrees.
The imaginary line between the poles of the Earth around which the Earth spins is called the "axis of rotation".
The imaginary line between the poles of the Earth around which the Earth spins is called the "axis of rotation".
The imaginary line circling Earth halfway between the poles is called the Equator. It divides the Earth into the Northern Hemisphere and the Southern Hemisphere. The Equator has a latitude of 0 degrees.
the Equator
the Equator
the equator
axis
the Equator
That's the Equator.
The Equator is the imaginary line around the Earth, halfway between the poles.
International Date Line
the Equator