Which is the first step in the process during the formation of molded fossils? Sediment hardens into rock.
O Sediment is eroded from rock.
O Organisms are buried under sediment.
O Organisms' shapes are preserved in rock.

HI, there your answer is

Organisms are buried under the sediment.

Explanation:

Hope this helps :)

a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.