Glossary

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gross domestic product (GDP)

Subject: 

  • Geography

the total annual value of goods and services produced within the borders of a country

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water cycle
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(also called a hydrological cycle) the cycle of evaporation and condensation that controls the...

voluntary population movement
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(also called spontaneous population movement) the voluntary movement of people from one place to...

low oblique aerial photograph
Subject:
Geography

aerial photograph taken at 0°-30° to the vertical

altitude
Subject:
Geography

height above sea level

transpiration
Subject:
Geography

process whereby plants give off moisture