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In what way are index fossils and layers of of ash found in ice cores?
both are used for relative dating
both only occur in igneous rocks
Many marine fossils are found in what is now desert. Which hypothesis best explains this?
The desert was once an ocean
Marine organisms lived on land in the past
formed through the cooling and solidification of magma or lava.
types of rock that are formed by the deposition of material at the Earth's surface and within bodies of water.
All are types of fossils EXCEPT
Cast and Mold
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