Atells you what the different symbols and lines represent on a map. scale legend compass title

This would be the legend!
The legend of a map tells you for example that a square means a capital city.

A scale shows you how big things presented on the map are in real life and the compass helps you orient the map with respect to the North.
A title helps you understand what the map focuses on (for example: " A Political map of Italy").

Answer the collision of tectonic plates;