Answer:
I believe a layer deep underground would have older things, because the ground could erode over time causing the fossil to sink into the ground.
1. Replication
2. Hydrogen
3. Nucleotides
4. Thymine (T)
5. Cytosine (C)
6. Identical
7. Original
8. New
I believe the answer is D, Cells get energy by taking in nutrients from food. Correct me if I'm wrong.
Your answer is B. carbohydrates. hope this helps