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What problem occurs if a different reference unit is chosen for every part during comparative measurement?

Answer and explanation

Correct answer: Consistency among measurements will be lost

The governing concept is proportional comparison using a fixed unit. When one selected part is treated as the reference, other lengths can be compared as multiples or fractions of that same unit. Changing the reference for each part changes the scale of comparison and makes the resulting proportions unreliable. Option B is correct; light direction, texture, and shadow darkness are not consequences of inconsistent measuring units.

Related tags

Object-ObservationComparative-MeasurementReference-UnitConsistencyObject ObservationDrawing BasicsArt EducationClass 9 Mcq

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