Class 7 Science MCQs (Grade 7) From Textbook

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Class 7 Science Competitive Exam: Certification Test 1813

Vibrations and Sound waves Notes App & e-Book: MCQ 1813

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MCQ: 1813

When the hand bell stimulates air particles,

  1. temperature increases
  2. pressure increases in the air
  3. both temperature and pressure decreases in the air
  4. humidity of air keeps on increasing and decreasing
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Vibrations and Sound waves Competitive Exam: Class 7 Science App & eBook Notes

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Vibrations and Sound waves Notes App (iOS & Android)

Vibrations and Sound waves Notes App

7th Grade Science Notes App (Android & iOS)

7th Grade Science Notes App

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Earth Science Notes App

8th Grade Science Notes App (Android & iOS)

8th Grade Science Notes App

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