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

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

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

Answer

Brief Explanations:

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

Answer:

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