
P1C 16Desertification Overview
Flashcard
•
Geography
•
12th Grade
•
Practice Problem
•
Hard
Van Zyl
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9 questions
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1.
FLASHCARD QUESTION
Front
What is desertification?
Back
Desertification is the process by which arable land becomes desert, typically as a result of climate change or destructive land use.
2.
FLASHCARD QUESTION
Front
What are the natural causes of desertification?
Back
Natural causes include long-term changes in the Earth's orbit and tilt, fluctuations in the sun's energy output, and changes in ocean current patterns affecting rainfall.
3.
FLASHCARD QUESTION
Front
What human activities contribute to desertification?
Back
Human causes include overpopulation, overuse of land resources, overgrazing, cutting down plants, and wrong farming methods like ploughing.
4.
FLASHCARD QUESTION
Front
Describe the case study of the Sahel region in relation to desertification.
Back
The Sahara has expanded southwards into the semi-arid Sahel at a rate of one metre per day, covering villages with dunes and making farming difficult.
5.
FLASHCARD QUESTION
Front
What are the consequences of worsening desertification?
Back
Consequences include crop failure, death of farm animals, food shortages leading to hunger and famines, and forced migration causing conflicts.
6.
FLASHCARD QUESTION
Front
What initiatives are used to manage desertification?
Back
Initiatives include afforestation, the Green Wall of Africa, planting pits (Tassas), windbreaks, check dams, and sand dams.
7.
FLASHCARD QUESTION
Front
What is the Green Wall of Africa?
Back
A large-scale project involving countries working together to plant a line of trees to stop the Sahara Desert from spreading further south.
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