how are casts formed by decaying organisms?\norganisms turn into rock over time.\norganisms leave carbon…

how are casts formed by decaying organisms?\norganisms turn into rock over time.\norganisms leave carbon residue on a rock.\norganisms leave impressions in sediment that hardens into rock.\nimpressions left by organisms are filled in with sediment that hardens into rock.

how are casts formed by decaying organisms?\norganisms turn into rock over time.\norganisms leave carbon residue on a rock.\norganisms leave impressions in sediment that hardens into rock.\nimpressions left by organisms are filled in with sediment that hardens into rock.

Answer

Brief Explanations:

Casts are formed when impressions left by organisms (molds) are filled with sediment that hardens into rock. The first option describes petrification, the second is related to carbon - film fossils, and the third describes mold formation.

Answer:

D. Impressions left by organisms are filled in with sediment that hardens into rock.