(A) Porous
(B) Hard
(C) Rough
(D) Brittle
Answer: (A) Porous
Q. The color of a sedimentary rock is often mostly determined by:
(A) Zinc
(B) Iron
(C) Calcium
(D) None of these
Answer: (B) Iron
Q. Thick sequences of red sedimentary rocks formed in arid climates are called:
(A) Red rocks
(B) Red sponge
(C) Red beds
(D) None of these
Answer: (C) Red beds