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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

stone circle

Geography; Physical geography

A circle of large stones found in periglacial areas when the formation of an ice lens just beneath the surface creates a dome from which stones on the surface roll away.


Geography; Physical geography

Average elevation of the surface of the oceans.

net primary productivity

Geography; Physical geography

The amount of organic material available for consumption in a given area. Gpp minus losses due to plant respiration.

trellised drainage pattern

Geography; Physical geography

Where the pattern of streams is such that the tributaries (or subsequent streams) to the main (or consequent stream) join at right-angles to it. The pattern may become more ...

nivation hollow

Geography; Physical geography

A circular depression in the ground, usually seen in periglacial areas, that has been created by nivation.

life expectancy

Geography; Physical geography

Average number of years that individuals are expected to live depending on where and when they are born and spend their lives. May be derived on national, regional or local scale.


Geography; Physical geography

The angular distance east or west of the prime meridian on any meridian. Joining points of the same angle on all the meridians creates a line of longitude encircling the globe. ...