For the same reason there are numbers on the front doors of houses.
The system of latitude and longitude angles gives every point on Earth an 'address'
of two numbers. They tell exactly where the spot is, and make it possible to find
that exact spot, even if there's nothing there, and nothing but water for a thousand
miles around it in every direction.
measure distance between the North and south pole.
latitude lines are parallel and longitude lines meet at the poles
They make them because they are used to measure distances north and south of the equator.
We use longitude and latitude when looking at a map to calculate time.
The lines of longitude on a map goes from north-south
on a map
London
Most maps will show latitude and longitude lines, if not, they're ALWAYS on a globe.
Latitude and longitude are able to pinpoint a certain location on Earth accurately on a map.
We use longitude and latitude when looking at a map to calculate time.
The lines of longitude on a map goes from north-south
Longitude lines go up and down on a map.
Latitude and Longitude map
Lines of longitude and longitude
Latitude and longitude
The cartographer, publisher, or printer of the map does that.
Longitude
By Longitude and Latitude
on a map
That's the vertical lines.