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Class 7 Science MCQs App Download | Sound Waves and Echoes MCQs Apps (iOS & Android)

Class 7 Science MCQs: Complete Course

Sound Waves and Echoes MCQs App Download & PDF e-Book | 1676

MCQ: 1676

A reflected sound is known as

  1. reflection of sound
  2. rarefaction
  3. refraction of sound
  4. echo

Class 7 Science App & e-Book Tests PDF Download

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