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What would you use to radio date a 1,000,000 year old fossil?
The length of time it takes for one-half of the radioactive element to change into a stable element.
Teeth
U-238
Fossil fuel
The theorized development of life on earth dating back 4.6 billion years ago
Both a and b
Mountain ranges
The remains or traces of an organism that lived long ago.
What parts of organisms are most likely to become fossilized?
The length of time it takes for one-half of the radioactive element to change into a stable element.
Teeth
U-238
Fossil fuel
The theorized development of life on earth dating back 4.6 billion years ago
Both a and b
Mountain ranges
The remains or traces of an organism that lived long ago.
Why do scientists study fossils?
The length of time it takes for one-half of the radioactive element to change into a stable element.
Teeth
U-238
Fossil fuel
The theorized development of life on earth dating back 4.6 billion years ago
Both a and b
Mountain ranges
The remains or traces of an organism that lived long ago.
What is a fossil?
The length of time it takes for one-half of the radioactive element to change into a stable element.
Teeth
U-238
Fossil fuel
The theorized development of life on earth dating back 4.6 billion years ago
Both a and b
Mountain ranges
The remains or traces of an organism that lived long ago.
Fossils can show how the earth\'s __________has changed over time.
The length of time it takes for one-half of the radioactive element to change into a stable element.
Teeth
U-238
Fossil fuel
The theorized development of life on earth dating back 4.6 billion years ago
Both a and b
Mountain ranges
The remains or traces of an organism that lived long ago.
A natural fuel that was formed from the remains of once living organisms:
The length of time it takes for one-half of the radioactive element to change into a stable element.
Teeth
U-238
Fossil fuel
The theorized development of life on earth dating back 4.6 billion years ago
Both a and b
Mountain ranges
The remains or traces of an organism that lived long ago.
The Law of Superposition states:
The length of time it takes for one-half of the radioactive element to change into a stable element.
Teeth
U-238
Fossil fuel
The theorized development of life on earth dating back 4.6 billion years ago
Both a and b
Mountain ranges
The remains or traces of an organism that lived long ago.
What does the geologic time scale represent?
The length of time it takes for one-half of the radioactive element to change into a stable element.
Teeth
U-238
Fossil fuel
The theorized development of life on earth dating back 4.6 billion years ago
Both a and b
Mountain ranges
The remains or traces of an organism that lived long ago.
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