Meridians of longitude can be used to tell time anywhere in the world. The earth rotates from west to east at a rate of 15 degrees per hour. This is 360 degrees in a twenty-four hour period. This time 15 degrees west of a point is one hour earlier. 15 degrees east would then be one hour later.
Physical maps show natural features such as mountains, rivers, oceans, and islands.
Cultural maps will include people made features such as political boundaries, highways, towns, dams, and oil wells. Cartographers will often use symbols to stand for different features on a map. The symbol will often times look like what they represent. They may use and outline of an airplane to show you where the airport is located. Colors, lettering, and lines are also some of the symbols that will be used.