What is the causal link between deforestation and soil erosion?

Correct answer: Tree roots bind the soil; when forests are cleared, the soil loses its hold

Tree roots hold soil particles together and help stabilise slopes and land. After forests are cleared, the soil is exposed, so running rainwater and wind can carry it away more easily, increasing soil erosion. Option B is incorrect because deforestation generally increases, rather than stops, erosion. Exam tip: remember the cause-effect chain: loss of roots → loose exposed soil → greater erosion.