Pick up the incorrect statement from the following:
(A) Porosity of clay sand soil is 45%
(B) Porosity of pure sand is 35%
(C) Porosity of sand stone is up to 15%
(D) None of these
(A) Porosity of clay sand soil is 45%
(B) Porosity of pure sand is 35%
(C) Porosity of sand stone is up to 15%
(D) None of these