What can increase the effect of depth in a colour scheme?

Correct answer: Placing warm colours forward and cool colours back

Correct answer: C. In many visual compositions, warm colours such as reds, oranges, and yellows can appear to advance, while cool colours such as blues and blue-greens can appear to recede. Placing warm colours toward the foreground and cool colours toward the background can therefore strengthen the impression of spatial depth. This is a visual tendency, not an unbreakable rule; value, size, overlap, detail, and perspective also affect depth. A is wrong because making every colour equally bright removes one possible difference between planes and does not automatically create depth. B is wrong because changing the paper alone does not arrange objects in space. D is wrong because erasing every line removes information rather than establishing foreground and background. C is correct because it uses colour temperature as a spatial cue. Memory cue: warm colours often come forward; cool colours often move back.