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What are fossils of species that lived for a short period of time over a wide area?
Index
The rock layers are approximately the same age
The intrusion formed after the layers were tilted
True
Earth's crust is subject to extensive erosion
If an intrusion exists within a rock later, the rock layer must be older
4.6 billion years
Absolute Dating
T/F- Crevices in a mountain can become larger as water freezes and expands, then melts again.
Index
The rock layers are approximately the same age
The intrusion formed after the layers were tilted
True
Earth's crust is subject to extensive erosion
If an intrusion exists within a rock later, the rock layer must be older
4.6 billion years
Absolute Dating
What does the principle of cross-cutting relationships tell us?
Index
The rock layers are approximately the same age
The intrusion formed after the layers were tilted
True
Earth's crust is subject to extensive erosion
If an intrusion exists within a rock later, the rock layer must be older
4.6 billion years
Absolute Dating
What is Earth's approximate age?
Index
The rock layers are approximately the same age
The intrusion formed after the layers were tilted
True
Earth's crust is subject to extensive erosion
If an intrusion exists within a rock later, the rock layer must be older
4.6 billion years
Absolute Dating
A sample of four rock layers is being examined. Layers 1-4 are tilted, and an intrusion cuts through layers 1-4. Which of the following must be true?
Index
The rock layers are approximately the same age
The intrusion formed after the layers were tilted
True
Earth's crust is subject to extensive erosion
If an intrusion exists within a rock later, the rock layer must be older
4.6 billion years
Absolute Dating
Which of the following is the correct term for giving the age of rock layers and fossils with specific years?
Index
The rock layers are approximately the same age
The intrusion formed after the layers were tilted
True
Earth's crust is subject to extensive erosion
If an intrusion exists within a rock later, the rock layer must be older
4.6 billion years
Absolute Dating
We know Earth is approximately 4.6 billion years old, even though no rocks have been dated older than 4 billion years, because _________
Index
The rock layers are approximately the same age
The intrusion formed after the layers were tilted
True
Earth's crust is subject to extensive erosion
If an intrusion exists within a rock later, the rock layer must be older
4.6 billion years
Absolute Dating
If the same fossils were found in different rock layers of different areas, geologists can assume that
Index
The rock layers are approximately the same age
The intrusion formed after the layers were tilted
True
Earth's crust is subject to extensive erosion
If an intrusion exists within a rock later, the rock layer must be older
4.6 billion years
Absolute Dating
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