choice one correct answer Rocks containing iron calcium magn

choice one correct answer

Rocks containing iron, calcium, magnesium, or sodium break down into

a) sands and gravels, b) clays

Solution

Answer:- (b) Clays

One types of clay montmorillonite which is hydrated sodium calcium aluminium

Magnesium silicate hydroxide. (Na,Ca)0.33(Al,Mg)2Si₄O₁₀(OH)₂ . nH₂O

Some other type of clay are

Halloysite

Illite

Vermuculite

Talc

Palygorskite