A. are laid down in strata
B. are crystalline
C. have high resistance to erosion
D. are basaltic in nature
Correct Answer: Option A
A. are laid down in strata
A. are laid down in strata
B. are crystalline
C. have high resistance to erosion
D. are basaltic in nature
Correct Answer: Option A
A. are laid down in strata
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