a) Create an application named Numbers whose main() method holds two integer variables. Assign values to the variables. Pass both variables to methods named sum() and difference() . Create the methods sum() and difference() ; they compute the sum of and difference between the values of two arguments, respectively. Each method should perform the appropriate computation and display the results. Save the application as Numbers. java.

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 !

Answerdashboard;