list the order of events from youngest to oldest

Explanation:

Step1: Apply principle of superposition

The principle of superposition states that in an undisturbed sequence of sedimentary rocks, the oldest layers are at the bottom and the youngest are at the top. Also, intrusions are younger than the rocks they cut through.

Step2: Identify youngest layer

Layer F is the top - most layer, so it is the youngest.

Step3: Analyze layer J

Layer J is below F and above B, so it is younger than F but older than B.

Step4: Analyze layer B

Layer B is above X and below J. It is younger than J and older than X.

Step5: Analyze intrusion X

Intrusion X cuts through S, M, K, and P. So it is younger than these layers but older than B which lies above it.

Step6: Analyze layer S

Layer S is above M, K, and P and below X. So it is younger than M, K, and P but older than X.

Step7: Analyze layer M

Layer M is above K and P and below S. So it is younger than K and P but older than S.

Step8: Analyze layer K

Layer K is above P and below M. So it is younger than P but older than M.

Step9: Analyze layer P

Layer P is the bottom - most layer among the sedimentary layers, so it is older than K.

Step10: Analyze intrusion R

Intrusion R cuts through P, K, M, S, and X. So it is younger than P, K, M, S, and X but older than B, J, and F.

The order from youngest to oldest is: F, J, B, X, R, S, M, K, P

Answer:

F, J, B, X, R, S, M, K, P