Question

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

Answer 1

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