passwella.
Menu

JAMB Biology 1984 Question 47

Question 47

Soil

If a handful of soil is shaken with water and left to settle, the soil particles will settle from light to heavy particles as follows

  1. A.humus, clay, silt, sand, stones
  2. B.humus, silt, clay, sand, stones
  3. C.humus, clay, silt, stones, sand
  4. D.humus, sand, silt, clay, stones
  5. E.clay, humus, silt, sand, stones.
Show the answer and explanation

Answer: A (humus, clay, silt, sand, stones)

Explanation

Heavier particles sink first, so from lightest to heaviest the order is humus (floats on top), clay, silt, sand and then stones.