Class 7 Science Online Tests
Sound and Vacuum Multiple Choice Questions (MCQ) PDF Download
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Sound and Vacuum MCQs: Questions and Answers PDF Download
MCQ 1: We cannot hear alarm of a clock if there is
MCQ 2: Sound can travel through air because
MCQ 3: An example to demonstrate the effect of sound in vacuum is
MCQ 4: Sound cannot travel in vacuum because
MCQ 5: We can hear the voice of alarm clock when there is
Class 7 Science Practice Tests
Sound and Vacuum Learning App & Free Study Apps
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