if radiometric evidence proves that a rock layer contains a fossil that is approximately 10,000 years old, what can also be determined using the principle of superposition?
A) The layers below this layer are older than 10,000 years old
B) The layers below this layer are younger than 10,000 years old
C) All layers of rocks above and below this layer are 10,000 years old
D) All layers of rocks above and below this layer are older than 10,000 years old
Yes, A is right.
Thank you Ms. Sue!
I'll be glad to check your answer.
Oops sorry I thought i posted it with the question lol. I think it's A.
You're welcome, Hannah.
Yes, assuming the continent was not turned upside down in the interim :)
The principle of superposition states that in an undisturbed sequence of sedimentary rock layers, the oldest rocks are at the bottom and the youngest rocks are at the top.
If radiometric evidence proves that a fossil in a particular rock layer is approximately 10,000 years old, we can apply the principle of superposition to determine the ages of the layers above and below it.
Since the fossil is found within a specific rock layer, we can infer that this layer is younger than the layers below it. Therefore, option A) The layers below this layer are older than 10,000 years old, is correct.
Option B) The layers below this layer are younger than 10,000 years old is incorrect, as the layers below are older.
Option C) All layers of rocks above and below this layer are 10,000 years old, is incorrect because other layers may have different ages.
Option D) All layers of rocks above and below this layer are older than 10,000 years old is incorrect because the layers above may be younger.