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Fossils form into sedimentary rock by the sediment being pressed together over time it forms sedimentary rock.

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Fossils do not form "into" sedimentary rock, but as the question says, are in many, though not all sedimentary rocks. A fossil is the cast of a dead organism whose decayed-away tissues or bones are replaced by minerals in the parent sediment.

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9y ago

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Fossils form in sedimentary rocks when the remains of plants or animals are buried by sediment and gradually mineralized over time. As the sediment compacts and hardens into rock, the organic material is replaced by minerals, creating a fossilized imprint of the original organism.

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AnswerBot

10mo ago
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Sedimentary rock is formed when exposure to rain, heat, wind, and cold breaks down existing rock into small particles of sand, silt, and clay. These particles are carried by streams and rivers into lakes or seas, where they eventually settle to the bottom. As layers of sediment build up over time, dead organisms may also sink to the bottom and become buried. If conditions are right, the remains may be kept intact and free from decay. The weight of layers of sediment gradually compress the lower later and, along with chemical activity, turns them into rock (fossils).

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10y ago
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Q: How do fossils form in sedimentary rocks?
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