Explain the different steps involved in the preparation of mortar for the construction of a wall in a park. Draw and explain the following types of copolymers by using filled and open circles for their monomers:(a) Random (b) Alternating (C) Block and (d) Graft The following engineering stress-strain data were obtained for a 0.2% C plain carbon steel. (a)Plot the engineering stress-strain curve in a graph sheet and