Answer:
Crayon manner: was developed in the 18th century and in this technique print done on metal whose purpose it is to follow chalk and crayon designs.
pastel-manner: was produced by Louis-Marin Bonnet in the year 1769
It is a method of color print utilizing various plates design in the crayon manner.
chalk: is a drawing material and it is a popular artwork medium.
It is used by designers,schools in blackboard work for teaching and also by tailors for making a mark on the clothes.