Africa's Environmental Terms

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Last updated 12:11 AM on 9/2/25
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20 Terms

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arid

dry

<p>dry</p>
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unequal distribution of water

when some parts of a region have rivers and lakes while others do not

<p>when some parts of a region have rivers and lakes while others do not</p>
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drought

when an area goes without rain for a long period of time

<p>when an area goes without rain for a long period of time</p>
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irrigation

when water is brought to farmers' fields by pipes, ditches, sprinklers, etc.

<p>when water is brought to farmers' fields by pipes, ditches, sprinklers, etc.</p>
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agriculture

farming crops for food

<p>farming crops for food</p>
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subsistence farming

raising just enough crops to support your family; not for sale

<p>raising just enough crops to support your family; not for sale</p>
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overgraze

problem occurring when grazing animals like cows and sheep eat too much of the vegetation in a dry area

<p>problem occurring when grazing animals like cows and sheep eat too much of the vegetation in a dry area</p>
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deforestation

cutting down trees and other vegetation

<p>cutting down trees and other vegetation</p>
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slash and burn agriculture

cutting down the vegetation on a plot of land, setting fire to the this vegetation, and using the ashes to provide nutrients to the soil when planting food crops

<p>cutting down the vegetation on a plot of land, setting fire to the this vegetation, and using the ashes to provide nutrients to the soil when planting food crops</p>
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poor soil

soil that doesn't have enough nutrients to grow plants

<p>soil that doesn't have enough nutrients to grow plants</p>
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desertification

the formation and expansion of desert

<p>the formation and expansion of desert</p>
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sewage

human or animal waste

<p>human or animal waste</p>
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overpopulation

too many people in an area

<p>too many people in an area</p>
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water pollution

when water is dirty from parasites, sewage, garbage, or chemicals

<p>when water is dirty from parasites, sewage, garbage, or chemicals</p>
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parasites

Any kind of living thing that lives on or in another living thing. It gets its food from inside the other living thing. It sometimes hurts the other living thing.

<p>Any kind of living thing that lives on or in another living thing. It gets its food from inside the other living thing. It sometimes hurts the other living thing.</p>
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waterborne diseases

diseases we can catch from the water

<p>diseases we can catch from the water</p>
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Green line of Demarcation

The place where the cultivated land ends and dessert begins

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Oasis

small place where trees are able to grow and people can live with grazing animals as a few crops

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Nomads

A member of a people who have no permanent home and travel from place to place to find fresh pasture and water for their livestock and example is the Tuareg people

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Infrastructure

The basic physical systems of a country's population, including healthcare, roads, utilities, water and sewage