Chapter 24: Class 7 Science Exam Tests
Class 7 Science MCQs - Chapter 24
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MCQ 106: Sound travels fastest in solids because the
MCQ 107: When two or more notes with different pitches are sounded together,
MCQ 108: A long thick tube produces
MCQ 109: Wind instruments make sound by allowing air to
MCQ 110: When a note is played by a string instrument, it produces
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