Sound Waves App Download | Class 7 Science Quiz PDF e-Book
Class 7 Science MCQs: Chapter 23
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The Quiz: Singing and talking are the "Sound Waves" App (iOS, Android) with answers: natural sounds, artificial sounds, man-made sounds, and sounds made electronically to learn online schools courses. Study All Around Sounds MCQ Questions, download Amazon e-Book (Free Sample) for online teaching certification programs.
Singing and talking are the
In large empty rooms, even a click keeps on
Sounds of thunder and horn of lorries are known as
Sound is created by our vocal cord due to
The normal value of decibel that our ears can detect is
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