They're just like the lines you see between the sections when you peel the skin off of an orange.
The key lines are latitude and longitude. These are based on specific points. The equator is the latitude around the center of the earth. Longitude is measured from the Prime Meridian, which goes through the Greenwich Observatory in England.The Tropics and the Arctic/Antarctic Circle are also key.
meridians or lines of longitude
"Lines" of constant longitude are "meridians".
Lines of longitude, or meridians.
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
The highest longitude lines are the prime meridian at 0 degrees longitude and the 180 degrees longitude line. These lines mark the starting point for longitude measurements to the east and west, respectively.
5 or 6 lines of longitude
Longitude lines run from pole to pole.
Lines of Longitude are imaginary lines that run from the North Pole to the South Pole. The main line of longitude, the Prime Meridian (zero longitude), passes through the Greenwich Observatory, London, England.
360 lines i think... There are 12 lines of East longitude. 360 is WAY off.