A geologist finds ripples Preserved in ancient sedimentary rock that look just like ripples made by water and mud. He concludes that there was once water in that location that created the rebels. Why is this conclusion reasonable.

Answer is given below

Explanation:

Sedimentary rocks are rock formations formed by the accumulation or deposition of mineral or organic particles on the earth's surface. The aqueous solution also causes precipitation in the form of dissolved minerals. Geological detritus is transported to the deposit site by water, air, ice or mass movement.  so ancient sedimentary rock that look just like ripples made by water and mud

Answer// dinosaurs emerged during mesozoic era;