* Longitude lines circle the globe. A longitude of 20 degrees West runs from the North Pole to the South Pole, passing through many countries and oceans.
* Latitude is also needed. To find a specific location, you need both longitude and latitude. Latitude lines run horizontally around the globe, like rings.
Think of it like a grid:
* Longitude is like the vertical lines on a grid.
* Latitude is like the horizontal lines on a grid.
Example:
* 20 degrees West, 40 degrees North would locate you in the Atlantic Ocean, near the Canary Islands.
* 20 degrees West, 0 degrees would be in the Atlantic Ocean, close to the equator.
To find a specific place, you need both its longitude and latitude coordinates.
