Question

What is the name of a layer of mud, sand, stones, etc. that forms at the bottom of a river.

Answer 1

Answer:

I think this is right! Hope it helps

Explanation:

Sedimentary rocks are laid down in layers called beds or strata. A bed is defined as a layer of rock that has a uniform lithology and texture. Beds form by the deposition of layers of sediment on top of each other. The sequence of beds that characterizes sedimentary rocks is called bedding.