passwella.
Menu

WAEC Agricultural Science 1993 Question 9

Question 9

Rocks and Soil Formation

During the processes of soil formation, the cracks or crevices that are first noticed on the rocks are normally caused by

  1. A.ice
  2. B.man
  3. C.wind
  4. D.temperature
  5. E.solution.
Show the answer and explanation

Answer: D (temperature)

Explanation

Daily heating and cooling makes rock expand and contract, so it cracks.