6. Write the causes of droughts in the flow chart below.
(3 marks)
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Causes of
Droughts
Class 5-EVS - Unit 5 - ASM 1 - 3
LEAD SCHOOL
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When rainfall is less than normal for a period of weeks to years, streamflows decline, water levels in lakes and reservoirs fall, and the depth to water in wells increases. If dry weather persists and water-supply problems develop, the dry period can become a drought.
examples
1) Land and water temperatures cause drought. ...
2) Air circulation and weather patterns also cause drought. ...
3) Soil moisture levels also contribute to drought. ...
4) Drought can also be a supply and demand of water issue.
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