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JAMB Biology 1997 Question 39

Question 39

Soil

In a soil sample, the relative amounts of the different soil particles can best be determined by the process of

  1. A.filtration
  2. B.centrifugation
  3. C.precipitation
  4. D.sedimentation.
Show the answer and explanation

Answer: D (sedimentation.)

Explanation

Shaking soil in water and letting it settle separates gravel, sand, silt and clay into layers whose thickness can be compared.