Smudging is not a type of shading technique, but rather a way of blending or softening the lines in a drawing.

Perspective is the technique of creating the illusion of depth in a drawing by using lines and shapes to suggest distance and spatial relationships.

Movement is not an element of composition in drawing, but rather a characteristic of certain types of drawings that suggest a sense of motion or dynamism.

Ink pens are best suited for creating detailed and precise lines because they produce a consistent and sharp line quality.

Oil pastels are not a type of drawing media that can be used for blending and creating soft edges because they are a dry medium that does not allow for blending.

Squaring up is the technique of using a grid to transfer a drawing from one surface to another by dividing both surfaces into a grid of squares and then copying the drawing square by square.

Curvilinear perspective is not a type of perspective used in drawing because it is a type of perspective that is used in painting and photography.

Chiaroscuro is the technique of using different values of light and dark to create the illusion of form and depth in a drawing.

Ink pens are not a type of drawing media that can be used for creating expressive and gestural marks because they produce a consistent and sharp line quality.

Hatching is the technique of using a series of short, parallel lines to create the illusion of texture or shading in a drawing.

Graphite pencils are not a type of drawing media that can be used for creating bold and dramatic lines because they produce a relatively light and delicate line quality.

Stippling is the technique of using a series of dots to create the illusion of texture or shading in a drawing.

Ink pens are not a type of drawing media that can be used for creating a wide range of values and tones because they produce a consistent and sharp line quality.

Scumbling is the technique of using a series of short, curved lines to create the illusion of texture or shading in a drawing.