gauge local rainfall amounts. study the area's geological history. predict the severity of earthquakes. show the surface features of an area.
I gave my students this multiple choice question: One of the functions of a topographic map is to

Only one answer is correct among these 4 choices:
- gauge local rainfall amounts.
- study the area's geological history.
- predict the severity of earthquakes.
- show the surface features of an area.

Could you tell me which one is correct?

show the surface features of an area.