Question

use the drop - down menus to answer the questions about the diagram. letter h is a(n) . which of these is youngest? which of these was eroded? which happened first? letter a letter f letter i

Explanation:

Step1: Determine the first - occurring event

According to the principle of superposition and cross - cutting relationships, older rocks are on the bottom and are cut by younger features. Letter A is part of the oldest rock layer that is not cut by other major features initially, so it happened first.

Step2: Identify the eroded layer

Erosion typically occurs at a surface. Layer F shows evidence of being eroded as there is an unconformity above it, indicating a period of erosion.

Step3: Find the youngest feature

The principle of cross - cutting relationships states that a feature that cuts across other rocks is younger. Letter I is a sedimentary layer that lies above other layers and is not cut by any other significant features among the options, making it the youngest.

Step4: Classify Letter H

Letter H cuts across other rock layers, which is characteristic of an intrusion (such as a magma intrusion that solidifies within pre - existing rocks).

Answer:

1. First - Letter A
2. Eroded - Letter F
3. Youngest - Letter I
4. Letter H is a(n) - intrusion