Geography

Geography

USA

Industry: Geography

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Geography

tree line

Geography; Geography

Either the latitudinal or the elevational limit of normal tree growth. Beyond this limit, closer to the poles or at higher or lower elevations, climatic conditions are too severe for such growth.

tree rings

Geography; Geography

Concentric rings formed annually as a tree grows.

A condition among a labor force such that a portion of the labor force could be eliminated without reducing the total output. Some individuals are working less than they are able or want to, or they ...

underpopulation

Geography; Geography

Economically, a situation in which an increase in the size of the labor force will result in an increase in per worker productivity.

uniform region

Geography; Geography

A territory with one or more features present throughout and absent or unimportant elsewhere.

vent

Geography; Geography

The opening at the Earth's surface through which volcanic materials (lava, tephra, and gases) erupt. Vents can be at a volcano's summit or on its slopes; they can be circular (craters) or linear ...