which process of sedimentary rock formation occurs last?\no cementation\no compaction\no deposition\no erosion

Answer:

A. cementation

Brief Explanations:

Deposition is the first - step where sediments are laid down. Compaction follows as sediments are squeezed together. Cementation is the final step where minerals precipitate and bind sediments into rock. Erosion is not part of sedimentary - rock formation but a process of wearing away rock.