Question

Sedimentary rocks with ripple marks suggest that the rocks formed

A. someplace where wind crossed over wet sediment while it was forming.
B. when an ancient animal swam over them.
C. from shell fragments of ancient sea-dwelling animals.
D. when wet mud dried and shrank.

Answer 1

I think it’s A I’m not completely sure

Answer 2

Answer: A

Explanation: Ripple marks are sedimentary structures and indicate agitation by water (current or waves) or wind.