Class 7 Science MCQs - Chapter 24
Sound Waves Quiz Questions and Answers PDF - 7
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Sound Waves Questions & Answers PDF Download: MCQ Quiz 7
MCQ 31: Singing and talking are the
MCQ 32: In large empty rooms, even a click keeps on
MCQ 33: Sounds of thunder and horn of lorries are known as
MCQ 34: Sound is created by our vocal cord due to
MCQ 35: The normal value of decibel that our ears can detect is
Class 7 Science Mock Tests
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