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Geography

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

soil

Geography; Physical geography

The very upper layer of the land surface made up of mixture of regolith, decomposed organic matter, air and water.

photovoltaic cells

Geography; Physical geography

A unit, usually of silicon, which is able to collect and store, temporarily, energy from the sun to produce electricity.

guelta

Geography; Physical geography

Pools found in overly-deepened portions of river beds in mountainous areas of north africa. These may be previous plunge pools or any place where higher rates of removal lowered a ...

refraction

Geography; Physical geography

The tendency for waves to become more parallel to the coastline as they approach it. Caused by the slowing of waves at their base as they enter shallower water.

nature reserve

Geography; Physical geography

An area of land set aside to protect the environment for its own sake. Development is prohibited and access is extremely restricted, usually to the reserve operators and ...

frost shattering

Geography; Physical geography

See freeze-thaw weathering.

v-shaped valley

Geography; Physical geography

The v-shape of the cross profile of a river valley in its upper course. As the river has little energy, most erosion is confined to periodic spurts when rainstorm events allow an ...