Question

What is a sedimentary rock?

A. a type of rock that is formed over long periods of time by layers of silt building up on the floor of a body of water

B. a type of rock formed over long periods of time by the cooling and solidification of molten Earth material

C. a type of rock that is formed in a very short period of time by sudden violent volcanic eruptions into the ocean

D. a type of rock that is formed over long periods of time by the transformation of existing rock types

Answer 1

answer is D

Step-by-step explanation:

sedimentation is the process to make the sedimentary rock. they are formed by using minerals or fossils or other rock types

Answer 2

It would be A, sediment builds up over time and is compressed into rock over millions of years. That is why when you look at sedimentary rock is has clear layers of sediment. Hope this helps you out!