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Matter in Our Surroundings — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings1 Mark
Question
Which of the following statement is incorrect?
✓

Answer

  1. The particles of some of the matter are moving constantly.
Explanation:
The statement that the particles of some forms of matter move constantly is incorrect because the particles of matter of all three states–solid, liquid and gas are moving constantly. Although the particles of solids are fixed at their positions, they vibrate constantly.

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