Question

Why can fossils be found in ancient river beds?

The remains of organisms are laid down in the layers of sediment and over time become fossils in the sedimentary rock.
Fossils are made only from things that live in the water.
River beds produce igneous rocks where fossils are found.
Fossils only form under the water.

Answer 1

the correct answer would be A.) The remains of organisms are laid down in the layers of sediment and over time become fossils in the sedimentary rock.