The law of superposition states that undisturbed rock layers are older than the layers above it and younger than the layers below it. Which statements is supported by the fossil evidence provided
The diversity of life forms decreased over time
Animals existed in the earliest fossil and then became extinct
Animals with bony skeletons emerged at layer 3 and continued to appear in newer layers
Life existed on land until layer 3 when a flood most likely occurred and introduced sea life to the area