Question 50
SoilThe process of soil erosion is usually from
- A.rill → sheet → gully
- B.gully → rill → sheet
- C.sheet → gully → rill
- D.sheet → rill → gully
- E.rill → gully → sheet.
Show the answer and explanation
Answer: D (sheet → rill → gully)
Explanation
Running water first removes a thin layer evenly (sheet erosion), then cuts small channels (rills), which grow into deep gullies.