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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 > Human geography

assimilation

Geography; Human geography

The process by which different groups within a community (distinguished on the basis of criteria such as affluence, economic status, race or religion) intermingle and become more ...

assisted area

Geography; Human geography

A term used in Britain to describe those parts of the country that benefit from various forms of government help as part of regional policy.

asthenosphere

Geography; Human geography

The uppermost zone of the Earth's mantle, lying at a depth usually within the range 60-200 km. Within it, the rocks are probably close to melting point, as a result of the ...

asymmetrical valley

Geography; Human geography

A valley whose slopes on one side are steeper than those on the other. Many asymmetrical valleys in Britain and Europe are attributed to past periglacial conditions, when ...

Atlantic-type coast

Geography; Human geography

A strongly embayed type of coastline, which is formed where the trend of mountain ridges and major lowlands is at right angles to the coastline as a whole (for example in SW ...

atmosphere

Geography; Human geography

The layer of gases (mainly nitrogen 78% and oxygen 21%), liquids and solids (e.g. dust, ash) that surrounds the earth, and which is held in place by gravity.

atoll

Geography; Human geography

A coral reef, surrounding a central lagoon, commonly found among the islands of the S Pacific. It is believed that atolls have been formed above former islands (sometimes ...