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Why is it difficult to add a darker value after graphite becomes shiny?

Answer and explanation

Correct answer: Compressed paper grain holds less new graphite

The governing concept is burnishing: excessive pressure makes the graphite layer smooth and shiny while compressing the tiny tooth or grain of the paper. Because fewer surface irregularities remain, new graphite particles cannot attach easily, so additional dark layers slide or appear weak. Therefore, option D is correct. A broken pencil tip can occur for another reason, but it does not explain why the shiny area resists further graphite. Use light layers from the beginning.

Related tags

Pencil ShadingGraphite ShinePaper GrainTonal ValueLayeringDrawing BasicsArt EducationClass 9 Mcq

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