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The study of physical characteristics of earth and the distribution and effects of life on earth, especially that of humans.

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Geography > Physical geography


Geography; Physical geography

A clay used in salt water drilling muds to improve the mud's carrying capacity, also called salt gel.


Geography; Physical geography

Quagmire is a soft marshy area of land that usually gives in under the feet (a bog). Later on, in the late 18th century, quagmire also took on an additional meaning: a difficult ...

c horizon

Geography; Physical geography

beneath the B-horizon and above the bedrock; consisting of weathered rock


Geography; Physical geography

An upwelling is an oceanographic phenomenon that involves wind-driven motion of dense, cooler, and usually nutrient-rich water towards the ocean surface, replacing the warmer, ...


Geography; Physical geography

properly, any movement of a living organism across space, or between locations. In geography, most commonly applied to population movements. It can be used to describe daily and ...

geologic time

Geography; Physical geography

The total time involved since formation of the earth to the present time.