50 POINTS! BUT NO GUESSING!
PLS HELPPP Land degradation is a major issue worldwide and poses a threat to the sustainability of agriculture and the economic development of many third world countries. Which statement best describes the major cause of land degradation in these countries?
A) overuse of the fertilizers
B) silt deposits at the mouths of rivers
C) wind and wave erosion on coastal areas
D) Water erosion caused by rain and runoff in semi-arid regions