Question

this diagram shows fossils in an undisturbed sedimentary rock sequence. shallower deeper which of the following fossils is older? select the more likely answer. ginkgo leaf mammal tooth

Explanation:

In undisturbed sedimentary rock layers, the principle of superposition states that deeper layers are older than shallower ones. The mammal tooth fossil is in the deeper (brown) layer, while the ginkgo leaf is in the shallower (orange) layer. So the fossil in the deeper, older layer is the mammal tooth.

Answer:

B. mammal tooth (assuming the mammal tooth option is labeled as B; if the options are just the images with the mammal tooth in the second position, then "The second fossil (mammal tooth)")