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Class 7 Science MCQs – Practice Test 32 (Chapter 23)
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Study Sound waves Notes Questions and Answers PDF for science remote learning support. Download the Sound Waves Quiz Answers PDF e-Book, Ch. 23-32 to study Class 7 Science Course. Practice Frequency and Pitch MCQ PDF, Sound Waves Quiz Questions and Answers for science remote learning support. Download the Sound Waves Learning App: Free Class 7 Science Notes App to frequency and pitch, all around sounds test prep for science STEM online platforms.
Free "Sound Waves Learning" App Download: An animal that can hear sounds with low frequency than human ear is; MCQ with answers: pigeon, whale, snake, and dog. Practice Frequency and Pitch MCQ Questions, download Kobo e-Book (Free Chapter) to complete digital science courses.
MCQ 156: An animal that can hear sounds with low frequency than human ear is:
MCQ 157: In air, change in pressure produces:
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Class 7 Science e-Book PDF with Notes
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