Causes of Drought and Desertification (Grade 11 NSC Matric Geography): Quizzes
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Practise the questions
10 questions from this quiz
What do El Niño & La Niña events involve in the Pacific Ocean?
What do El Niño & La Niña events involve in the Pacific Ocean?
Sea surface temp & air pressure changes
What are temperature anomalies above average called?
What are temperature anomalies above average called?
Positive anomalies
How does global warming contribute to drought conditions? (Select the two main ways)
How does global warming contribute to drought conditions? (Select the two main ways)
Reduced rainfall & increased evaporation
What is the root cause of desertification?
What is the root cause of desertification?
Demand for resources exceeds supply
Where is the Sahel region located?
Where is the Sahel region located?
Along the southern edge of Sahara desert
How much rainfall does the Sahel receive in normal years?
How much rainfall does the Sahel receive in normal years?
Between 150mm and 450mm
How quickly is the Sahel's population growing?
How quickly is the Sahel's population growing?
Doubling every 20 years
What does overgrazing do to the land in the Sahel?
What does overgrazing do to the land in the Sahel?
Strips away grass cover, leading to erosion
What poor farming method exhausts soil nutrients in the Sahel?
What poor farming method exhausts soil nutrients in the Sahel?
Planting same crops yearly in same spot
How did colonial boundaries affect Sahel nomadic herders?
How did colonial boundaries affect Sahel nomadic herders?
Prevented movement to better grazing areas