Let's Look It Up
Fault line (noun) - According to Webster's New World Dictionary,
3rd College Edition, a fracture or zone of fractures in rock strata together
with movement that displaces the sides relative to one another.
Fossil (noun) - According to Webster's New World Dictionary,
3rd College Edition, any hardened remains or imprints of plant or animal
life of some previous geologic period, preserved in the earth's crust.
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