The 180 degree longitude is often miscalled international date line, when it is actually called the Anti Meridian.
The date line is not a meridian or line of longitude because it is not a straight line as it deviates to separate geographical places, certain island groups for instance.
See the link below for an image.
The longitude that runs through Greenwich England is the prime meridian, which is 0 deg longitude.
The Prime Meridian
Spain lies on zero degree longitude line together with France.
Mainly the 180 degree line.
what countries does the 30 degree line of longitude pass through from the north pole to the south pole
They sit at the 40 degree East line of longitude.
another name for a line of longitude is meridian.
Coordinates given in WikiPedia indicate a longitude of 21 degrees east. This puts the point at which this coordinate is set east of the 20 degree line.
The name of the line that has 0 longitude is the prime meridian
no, it is the zero degree line of longitude the equator would be the zero degree line of latitude
They sit at the 40 degree East line of longitude.
180
Geographers call the 0-degree line of longitude the Prime Meridian. This line runs through Greenwich, England and serves as the starting point for measuring longitude.