Final answer:
a. Contour drawing involves the use of long continuous lines to capture the changing surface and outline of an object.
Step-by-step explanation:
The type of drawing that involves the use of long continuous lines to capture the changing surface and outline of an object is called a. contour drawing.
Contour lines outline the figures and forms in the image, creating the illusion of shading and form. They give flat shapes a sense of form and can be used to create shading. Contour drawing is a technique commonly used by artists to depict the three-dimensional qualities of objects.