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Which theory does evidence found in sedimentary rocks best support?
Dramatic change in life forms.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
The fossil was formed around the same time as the rock layer that contains it.
They became extinct.
They contain evidence showing changes in the atmospheric conditions
carbon-14 with a half-life of 5,700 years
Organisms have evolved from simple to complex life forms.
The area that is now mountains was once under the oceans.
Why are ice cores important to the study of geologic history?
Dramatic change in life forms.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
The fossil was formed around the same time as the rock layer that contains it.
They became extinct.
They contain evidence showing changes in the atmospheric conditions
carbon-14 with a half-life of 5,700 years
Organisms have evolved from simple to complex life forms.
The area that is now mountains was once under the oceans.
Through relative dating, a geologist finds a fossil that is approximately 10,000 years old. Which radioactive element would the geologist most likely use to accurately calculate th
Dramatic change in life forms.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
The fossil was formed around the same time as the rock layer that contains it.
They became extinct.
They contain evidence showing changes in the atmospheric conditions
carbon-14 with a half-life of 5,700 years
Organisms have evolved from simple to complex life forms.
The area that is now mountains was once under the oceans.
Index fossils help scientists estimate the age of a rock because index fossil species only existed for a relatively short time. What happened to the species that are now used as index fossils?
Dramatic change in life forms.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
The fossil was formed around the same time as the rock layer that contains it.
They became extinct.
They contain evidence showing changes in the atmospheric conditions
carbon-14 with a half-life of 5,700 years
Organisms have evolved from simple to complex life forms.
The area that is now mountains was once under the oceans.
What determines the divisions in the geologic time scale?
Dramatic change in life forms.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
The fossil was formed around the same time as the rock layer that contains it.
They became extinct.
They contain evidence showing changes in the atmospheric conditions
carbon-14 with a half-life of 5,700 years
Organisms have evolved from simple to complex life forms.
The area that is now mountains was once under the oceans.
Which generalization can be made about the relative age of a fossil found in a sedimentary rock bed?
Dramatic change in life forms.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
The fossil was formed around the same time as the rock layer that contains it.
They became extinct.
They contain evidence showing changes in the atmospheric conditions
carbon-14 with a half-life of 5,700 years
Organisms have evolved from simple to complex life forms.
The area that is now mountains was once under the oceans.
Fossils of ocean clams are found in the rocks of the Appalachian Mountains. What do these fossils most likely indicate?
Dramatic change in life forms.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
The fossil was formed around the same time as the rock layer that contains it.
They became extinct.
They contain evidence showing changes in the atmospheric conditions
carbon-14 with a half-life of 5,700 years
Organisms have evolved from simple to complex life forms.
The area that is now mountains was once under the oceans.
What kinds of things do scientists date using Radiometric dating with Carbon-14? Why?
Dramatic change in life forms.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
The fossil was formed around the same time as the rock layer that contains it.
They became extinct.
They contain evidence showing changes in the atmospheric conditions
carbon-14 with a half-life of 5,700 years
Organisms have evolved from simple to complex life forms.
The area that is now mountains was once under the oceans.
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