1	topographic		_____	features used for traveling by land, sea, or air
2	physical relief		_____	locations of and boundaries between countries, states, towns, or other units of government
3	road		_____	changes that occur with time or after important events
4	navigation		_____	locations of pipes, cables, wires, or any structure placed by people for a public or business purpose
5	seafloor		_____	kinds or amounts of people or animals living there
6	vegetation		_____	hills and valleys on land (elevation and depression)
7	production		_____	kinds or amounts of plants and trees
8	occurrence		_____	kinds or amounts of rainfall, sleet, snowfall, or other natural water coming from weather
9	population		_____	streets and highways to aid in driving a car or truck
10	political		_____	boundaries used for business or government purposes (area codes, zip codes, school attendance)
11	precipitation		_____	kinds or amounts of things grown, raised, or made there
12	historical		_____	hills and valleys that can be felt not just seen
13	zoning		_____	features used for traveling through the ocean in a submarine
14	utility		_____	kinds or amounts of things existing or happening there (also called distribution or frequency)