Answer :
Final answer:
Decertification is the land degradation process leading to desertification, with humans contributing through various activities. South Africa faces significant threats from desertification, impacting its economy through reduced agricultural productivity and increased dependence on costly irrigation.
Explanation:
Decertification is the process of land degradation, typically in arid, semi-arid, and dry sub-humid areas, leading to desertification. One way in which humans contribute to desertification is through activities like overgrazing, deforestation for fuelwood, and unsustainable agricultural practices.
The extent to which South Africa is threatened by desertification is significant, especially in regions where activities like deforestation and unsustainable land management practices are prevalent.
Two effects of desertification on the economy of South Africa include decreased agricultural productivity due to soil degradation and increased reliance on expensive irrigation methods to combat desertification-induced land infertility.
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