How are topography maps different from other types of maps? Check all that apply.
Topography maps indicate man-made and natural landforms, and other maps do not.
Topography maps include the locations of countries and cities, and other maps do not.
Topography maps contain a ratio to determine actual distances, and other maps do not.
Topography maps use symbols to portray different land features, and other maps do not.
Topography maps include boundary lines separating one state from another, and other maps do not.

Topography maps indicate man-made and natural landforms, and other maps do not.  

Topography maps contain a ratio to determine actual distances, and other maps do not.

Topography maps use symbols to portray different land features, and other maps do not.

Explanation:

A topographic map is a type of map characterized by representing the relief in a large scale level of detail, using for this purpose the so called contour lines. They are especially useful for hikers and mountaineers on their outings to the mountain, since they allow them to know the orography of the area through which to carry out their activity, and thus be able to plan it. It is also usually accompanied by a coordinate system to know how to precisely locate any point on it.

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )

the answer is na (sodium)