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Why should a poster colour container be closed after use?

Answer and explanation

Correct answer: To prevent the colour from drying

The governing concept is proper storage of water-based poster colour. Closing the container prevents water from evaporating, so the paint retains suitable moisture and remains usable for later work. Therefore, option A is correct. Heating the colour, changing its shade, or making the bottle heavier is not achieved by closing the lid and does not explain the required practice.

Related tags

Colour StoragePoster Colour CareContainerPoster ColourPainting TechniquesArt EducationClass 9 Mcq

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