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These ncert notes can be used for quick revision in cbse exams. Cbse class 9 science work and energy notes jagran josh. Class 9 vigyan chapter notes science in hindi medium chapter notes comprises of all definitions, theory, concepts, theorem, examples, axioms, tips n tricks, faculties own knowledge and are concise notes prepared by subject matter experts from all across the world. If anything appears to be missing, send me a message.
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