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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

discrete variable

Geography; Physical geography

A variable which can only be measured in whole, individual units if it is to have any real meaning e.g numbers of people.

catastrophism

Geography; Physical geography

The belief that landscape is the result of sudden, catastrophic events, rather than slow, day-to-day processes. Outmoded, but recognized as a contributory factor.

balance of payments

Geography; Physical geography

Net sum of a country income from and expenditure on foreign trade which can run to a surplus or a deficit.

dispersal

Geography; Physical geography

The movement of people or organisms from their area of birth.

catchment area

Geography; Physical geography

The area of land from which precipitation makes its way to a particular river channel.

balance of trade

Geography; Physical geography

The net sum of imports and exports of visible goods. Forms part of the balance of payments along with the same calculation for invisibles.

disposable income

Geography; Physical geography

Income left after taxes and necessities have been paid. This can be spent on goods or services wanted, or saved.