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Fuctional and formal
formal
Perceptual
The Grand Canyon is a Functional Region
Aral sea in Kazakhstan is a formal functional region
formal
no its neither appalachia is a perceptual region
kauai Hawaii is a functional region because a functional region means something that functions and Kauai has tourism which functions.
D . Functional region
they are a formal region. there are actual boundries that make it, they arent changing year to year and arent based on culture. so there formal.
The United States has been divided in regions identified as formal, functional or perceptual. Texas is classified as a formal region where all traits are based on measurable data.
perceptual - the pretty part of nothern Germany functional- the Berlin urban area formal-Germany