Which is the best example of how symbols are used to us understand maps? the lines of latitude and longitude show where a location is in the world. an indicator shows if the top of the map is north. an image of a man and woman may represent the location of the restrooms. the title of the map tells what is being shown.

2. An indicator shows if the top of the map is north, is the correct answer.

Other answers:
1. Lines could be considered symbols, but an indicator on a map is more of a symbol.
3. An image of a man and a woman representing the location of the restrooms maybe a better symbol, but it's not an example that helps us understand maps.
4. A title describes the map, but isn't really a symbol.

Hope this helps!

Magma is outside the volcano  and lava is inside the volcano.