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Only the results were recorded in brush practice, but pressure, moisture, and angle were not noted. What analytical difficulty will arise?

Answer and explanation

Correct answer: It will be impossible to determine which factor produced each effect

The governing concept is variable control and cause-and-effect analysis. If the final mark is recorded without pressure, moisture, and brush angle, several conditions could have produced the same result. Therefore, the observer cannot identify which factor caused a dark, broad, or broken stroke. Option B is correct; brush price, drying, and paper colour do not explain the missing experimental information.

Related tags

Brush TechniquesVariable ControlCause-Effect AnalysisProcess RecordingPainting TechniquesArt EducationClass 9 Mcq

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