Question

Land degradation is a major issue worldwide and poses a threat to the sustainability of agriculture and economic development of many third world countries. Which statement best describes the major cause of land degradation in these countries?
Responses

A over use of fertilizersover use of fertilizers

B silt deposits at the mouths of riverssilt deposits at the mouths of rivers

C wind and wave erosion on coastal areaswind and wave erosion on coastal areas

D water erosion caused by rain and runoff in semi-arid regions

Answer 1

D water erosion caused by rain and runoff in semi-arid regions best describes the major cause of land degradation in many third world countries. Semi-arid regions often experience irregular rainfall and can be particularly vulnerable to erosion, leading to loss of soil fertility and increased degradation. This issue is exacerbated by factors such as unsustainable agricultural practices, deforestation, and overgrazing, which can intensify water erosion effects.