Question

PLEASE HELP DUE RIGHT NOW!!

The image shows cross-cutting relationships. B, W, E, and K represent rock layers, and Q represents a fault.

Which statement describes the geologic features?

1. Layer K is the oldest.

2. Layer W is the youngest.

3. Fault Q occurred before layer K was deposited.

4. Layers B, W, and E were deposited after fault Q occurred.

Answer 1

The best answer would be option 3:

Fault Q occurred before layer K was deposited.

If you'd like to know why:

As you can see in the diagram, fault Q does not cross layer K. It stops right under it, so this means that the fault occurred first, then over a span of time, layer K was deposited.

To rule out the rest:

The oldest layer is the one at the bottom so that should be Layer B.

The youngest should be the top-most layer, unless a fault or an intrusion cuts through it, so Layer K is the youngest.

The last option is wrong because fault Q cuts through all those layers, which means it happened after those layers were formed.

Answer 2

3. Fault Q occurred before layer K was deposited.3. Fault Q occurred before layer K was deposited.

As seen through the picture, layer K is still complete (not cut into two pieces). This means that Layer K was deposited after Fault Q.

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