Why might someone use a topographic map instead of a coordinate map ?

Topographic maps are used by hikers and backpackers to plan routes, estimate travel times, find water, good campsites, and track their progress on hikes. They're designed to depict the three dimensional shape of the world (mountains, valleys, plains, etc.)

do your own work

you really need to do your own work and stop cheating

answer; the civil right act of 1964;