01 Using warm and cool colours together in a painting can increase what?
Answer and explanation
Correct answer: A. Colour contrast
Explanation: Option A, colour contrast, is correct. When warm colours such as red or orange are placed near cool colours such as blue or green, their different visual temperatures make the colour relationship more noticeable. This contrast can help a focal object stand out and can add depth, variety, and visual interest to a composition. It does not change the physical weight of the artwork, paper thickness, or necessarily create darkness, so options B, C, and D are incorrect.