Each of the pixels can take on one of eight grey levels ranging from 0 (white) to7 (black). in order to prevent sharp discontinuities of shade, the softwaresystem that causes pictures to be displayed enforces the rule that the greylevels of two adjacent pixels cannot differ by more than two. how many of the64 possible assignments of grey levels to two adjacent pixels satisfy this rule? (a) 24 (b) 32 (c) 34 (d) 40 (e) 64

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 !