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Class 10 Physics Cerification Guide: Certification Test 142

Echo of Sound MCQs App Download & e-Book - 142

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MCQ: 142

To communicate with each other, Elephants use

  1. low frequency sound waves
  2. low frequency light waves
  3. high frequency sound waves
  4. low frequency heat waves
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Echo of Sound Cerification Guide: Class 10 Physics App & eBook MCQs

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Echo of Sound MCQs App (iOS & Android)

Echo of Sound MCQs App

10th Grade Physics MCQs App (Android & iOS)

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9th Grade Physics MCQs App

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