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2026-27 AL-Earth and Space Science
Fossils
Question 7
7
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Fossils
Question 7 • 2026-27 AL-Earth and Space Science
How are casts formed by decaying organisms?
Answer
O
Organisms turn into rock over time.
O
Organisms leave carbon residue on a rock.
O
Organisms leave impressions in sediment that hardens into rock.
I
Impressions left by organisms are filled in with sediment that hardens into rock.
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