What effect does uneven line spacing give on a surface?

Correct answer: Indication of uneven texture and depth

The correct answer is C: uneven spacing between lines can indicate uneven texture and depth. Lines placed close together may make an area appear darker, denser, rougher, or more recessed, while wider gaps may make it appear lighter, smoother, or more open. The viewer reads this difference as a change across the surface, especially when the line direction also follows the form. Option A is wrong because the presence of uneven lines is not complete emptiness. Option B is wrong because spacing alone does not literally show the thickness of the paper; it is a visual device for describing a surface. Option D is unrelated because a subject’s name has no visual connection with line spacing. The effect is not automatic in every drawing, but in a planned linear study it can suggest variation in texture and depth. Memory cue: closer lines usually create visual density, and changing density can make a surface appear to change.