Technician a says that the engine block is the solid frame from which all automotive and truck engines are constructed and is made out of cast iron or aluminum. technician b says that the cylinders are deep, can-shaped holes that are drilled into the engine block, and that the up-and-down movement of the pistons inside the cylinders produces the power needed to operate the vehicle. who is right? a. neither technician a nor b b. both technicians a and b c. technician a only d. technician b only

Through the process of sedimentation,sediment is turned back to rock to form sedimentation.the process of sedimentation is: > deposition-where fragments were deposited into the river or sea under gravity or travelling agent such as wind or water. > sedimentation-the fragments deposited in the river sedimented and accumulate> compaction-the layers of fragments deposited undergoes compaction due to the weight if the upper layers> cementation-chemical substance of the fragments such as cement dissolved into the water and cement the other fragments together to form sedimentary rock.thus,cementation and compaction are the process.on the other hand, transformation only occur when a rock under goes metamorphism(compaction or extreme heat).while recrystillization occurs when a rock is melted and cooled down,which also requires metamorphism to take place.hope it !