Please help will mark brainliest !!! In the geologic cross section in the concept, the last thing to happen in the sequence

was

Fault E

The igneous intrusion D

The erosion of the surface

The laying down of sedimentary rock layer C

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of