16. Which one of the following is NOT the cause of desertification in Africa?
A) Overgrazing.
B) Lack of drought early warning system.
C) Burning of bushes and deforestation.
D) Long-term decline in rainfall.
17. Land degradation is mostly caused by________________
A) Less rainfall over a long period.
B) Limited agricultural activities in an area.
C) Mismanagement of land and taking too much of it.
D) Severe chemical weathering
16. D)
17. C)
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