What is a sedimentary rock? Answer choices a type of rock formed over long periods of time by the cooing and solidification of molten earth material, a type of rock that is formed over long periods of time by the transformation of existing rock types, 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, a type of rock that is formed in a very short period of time by sudden violent volcanic eruption into the ocean

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