Multiple choice

Which of the following does not prevent soil erosion?

  1. Afforestation

  2. Terrace farming

  3. Excessive use of fertilisers

  4. Construction of embankments

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Excessive fertilizer use does not physically prevent soil from being washed or blown away. Afforestation creates root networks that hold soil, terrace farming reduces water runoff speed, and embankments physically block soil movement; these are proven erosion control methods.