What is soil composed of?

Question

Typically, soil (by volume) is made up of 45% ___________, 5% ___________, and the remaining 50% is ___________, which is filled with water and/or air.

A. rock; humus; sand/silt/clay

B. silt; clay; sand

C. sand; clay; rock

D. dead material; living material; inorganic material

E. mineral matter; organic matter; pore space

Answer 1

E