. A small airline company serves many small communities out of Fairbanks, Alaska. The communities served by this airline form what type of region?

homogeneous

formal

perceptual

functional

Which of the layers of the earth has the following three characteristics? i. it is a solid outer layer. ii. it is between 3 and 30 miles thick. iii. it is separated into plates. a. the outer core b. the inner core c. the mantle d. the crust