Question

The first picture is for the first question and the second picture is for the 2nd question

Which is the topmost layer of the rock?
Layer A
Layer B
Layer C
Layer D


Which statement about the rock fossils is true?

Organism X existed for a short period of time.
Organism Y became extinct before organism X.
Organism X and organism Y existed at the same time.
Organism Z became extinct much before organism X.


Scientists find an artifact next to an index fossil. What can they conclude about the unknown age of the artifact?

The artifact is older than the index fossil.
The artifact is younger than the index fossil.
The artifact is approximately the same age as the index fossil.
The artifact's age is not related to that of the index fossil.

What process uses analysis of the decay of atomic particles to determine exact age?

Radioactive dating
Law of superposition
Relative dating
Geologic time

Answer 1

Question 1
The topmost layer of the rock would be layer B I think because its the most recent layer

Question 2
The answer should be "Organism X existed for a short period of time" because the other ones dont make sense and maybe if it existed for a short period of time there would be less fossils of it in the rock.

Question 3
The answer should be C because if it is next to the fossil that would mean it existed when the fossil did.

Question 4
I think the answer is radioactive dating because radioactive dating is a technique used to date materials such as rocks or carbon. 

Answer 2

Answer:

1. B

3. C

4. its radioactive dating i learned about this