What do the following colour's represent on a map

Blue -
Green -
Yellow -

The meanings of colors on a map can vary depending on the specific map and its purpose. However, here are some common representations:

1. Blue - Blue is often used to represent bodies of water such as rivers, lakes, oceans, and other sources of water on a map.
2. Green - Green typically represents vegetation, forests, parks, or other areas with significant plant cover.
3. Yellow - Yellow can represent various features depending on the map. It may represent deserts, arid areas, or sometimes it is used for highlighting boundaries, cities, or other important areas.