Question

1. explains what the symbols on a map represent

Explanation:

The element that explains what the symbols on a map represent is the "legend" (or "key") of the map. The legend is a part of a map that provides a description and explanation of the symbols, colors, and other graphical elements used on the map to represent different features (such as roads, rivers, cities, mountains, etc.).

The map component explaining symbol meanings is the legend (key), which defines map symbols/colors for features.

Answer:

Legend (or Key)