Question
Variations in moisture content result in the clay soil's
characteristic swelling and shrinking. It is due to presence of ____________ mineral.Solution
Bentonite clay shows swelling and shrinkage of soil due to the presence of Montmorillonite minerals . Montmorillonite consists of hydrated aluminum silicate. Volcanic ash weathers to become montmorillonite. pH of such soil is 5.6.
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