use what you know about relative dating to choose the correct answers from the drop - down menus. ethan…

use what you know about relative dating to choose the correct answers from the drop - down menus. ethan determines that layer b is 3.5 million years old. due to the law of superposition, he can estimate that layer a is

use what you know about relative dating to choose the correct answers from the drop - down menus. ethan determines that layer b is 3.5 million years old. due to the law of superposition, he can estimate that layer a is

Answer

Explanation:

Step1: Understand law of superposition

The law of superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the layers get younger as you move up.

Step2: Analyze layer ages

Layer B is 3.5 million years old. Layer A is below layer B, so it must be older than layer B. Among the options 2 million, 3 million, and 4 million years, 4 million years is the oldest and is consistent with layer A being below layer B.

Answer:

4 million