im pretty sure that lines of longitudeend at the north and south poles.
meridians or lines of longitude
All of the longitude "lines" merge at the north and south poles, so you might say that they 'start' at one of these points and end at the other one. If the question means to ask: "Where is the line of zero longitude ?", then the answer is: The origin of longitude is defined as the Prime Meridian, an imaginary line between the north and south poles that passes through the Royal Observatory in Greenwich, England.
On maps, lines of latitude divide the Earth into "rings" of mainly 18 parts with each "ring" having 10 degrees latitude. Lines of longitude then cut across the lines of latitude and thus forming grids. There are mainly 36 lines of longitude spaced at 10 degrees longitude apart. In the end, there are 648 grids on a map if split up in this way.
"Lines" of constant longitude are "meridians".
Lines of longitude, or meridians.
Longitude, longitudinal As opposed to latitude (horizontal lines circling the earth.
Parallel lines, by definition, cannot meet. The lines of longitude meet at the Poles.
Vertical lines parallel to the prime meridian are lines of longitude.
lines of longitude are lines drawn north and south and measure east and west a famous line of longitude is the Prime meridian
Lines of longitude stay right there where they are at. Each of them connects the north and south poles.
The Prime Meridian is a line of longitude that passes through Greenwich, England, and is used as the starting point for measuring longitude around the world.
Longitude lines run from pole to pole.