Many people use relative location on a daily basis by using
a. coordinates on a gps-enabled device
b. their mental maps of an area
c. a location's exact address
d. the internet

The right answer is b. their mental maps of an area.

The mind map, which also bears the names of a mind map, idea tree or mindmapping, is a great tool for keeping information. It makes it possible to visualize the links between the ideas and to have a global approach of the subject. The main reason for its effectiveness is that it uses the natural functions of the brain.

separation of church and state? not sure what you mean.