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Read these two excerpts. What do mold fossils and cast have in common?
A Both can be found only in ice or frozen areas.
B Both are made when an animal eats a plant or another animal.
C Both happen only in warm or sandy areas.
D Both have to do with a print that is made by an animal or a plant.
The correct answer is D: Both have to do with a print that is made by an animal or a plant.
Explanation: Mold fossils are formed when an organism leaves an impression in sediment that hardens, creating a mold of the original shape. Cast fossils occur when that mold fills with minerals or sediments, creating a cast of the organism. Both processes involve the creation of a print or impression left by living things. If you have any more questions or need further clarification, feel free to ask!