Class 7 science Practice Tests
Class 7 Science Online Tests
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The MCQ: Sounds of vehicles, aircrafts and machines are called; "All Around Sounds" App Download (Free) with answers artificial sounds, natural sounds, noise and normal sounds to study e-learning courses. Solve sound waves quiz questions, download Google eBook (Free Sample) for online education programs.
MCQ 1: Sounds of vehicles, aircrafts and machines are called
MCQ 2: For communication astronauts use radio because
MCQ 3: Like light, sound cannot
MCQ 4: Vibrations are caused due to
MCQ 5: Sound is a form of
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