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Question

Is soil made up of only weathered parts of a denuded rock? Explain. [2 MARKS]


Solution

Reason out: 0.5 mark for each point

No. soil does not only consist of weathered parts of a  denuded rock.Soil consists of :-
  • inorganic mineral matter, about 40 to 45 percent of the soil volume
  • organic matter, about 5 percent of the soil volume
  • water, about 25 percent of the soil volume
  • air, about 25 percent of the soil volume

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