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Rock layers are _____________than the intrusions that cut across them.
exactly how Earth originally formed.
older
4.6 billion
sedimentary rock
minerals replace all or part of an organism.
precambrian,paleozoic,mesozoic,cenozoic
unconformity
lived for a short period time and are wide spread
Fossils are almost always found in
exactly how Earth originally formed.
older
4.6 billion
sedimentary rock
minerals replace all or part of an organism.
precambrian,paleozoic,mesozoic,cenozoic
unconformity
lived for a short period time and are wide spread
The Precambrian time began after the formation of the Earth about_____ years ago.
exactly how Earth originally formed.
older
4.6 billion
sedimentary rock
minerals replace all or part of an organism.
precambrian,paleozoic,mesozoic,cenozoic
unconformity
lived for a short period time and are wide spread
When rock layers are lost due to erosion, this is known as
exactly how Earth originally formed.
older
4.6 billion
sedimentary rock
minerals replace all or part of an organism.
precambrian,paleozoic,mesozoic,cenozoic
unconformity
lived for a short period time and are wide spread
the geoligical eras in order from oldest to youngest is
exactly how Earth originally formed.
older
4.6 billion
sedimentary rock
minerals replace all or part of an organism.
precambrian,paleozoic,mesozoic,cenozoic
unconformity
lived for a short period time and are wide spread
An index fossil
exactly how Earth originally formed.
older
4.6 billion
sedimentary rock
minerals replace all or part of an organism.
precambrian,paleozoic,mesozoic,cenozoic
unconformity
lived for a short period time and are wide spread
Fossils provide evidence for all of the following EXCEPT
exactly how Earth originally formed.
older
4.6 billion
sedimentary rock
minerals replace all or part of an organism.
precambrian,paleozoic,mesozoic,cenozoic
unconformity
lived for a short period time and are wide spread
A petrified fossil forms when
exactly how Earth originally formed.
older
4.6 billion
sedimentary rock
minerals replace all or part of an organism.
precambrian,paleozoic,mesozoic,cenozoic
unconformity
lived for a short period time and are wide spread
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