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Class 7 Science Competitive Exam: Certification Test 1676

Sound Waves and Echoes Quiz App & e-Book: MCQ 1676

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MCQ: 1676

A reflected sound is known as

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

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Sound Waves and Echoes Competitive Exam: Class 7 Science App & eBook Quiz

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