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Inventions MCQs (Grade 8) From Textbook

Inventions MCQs – Certification Test 769

Walkies Talkies Trivia (Question 769) – App & e-Book Download

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MCQ 769: Walkies-Talkies were patented by:

  1. Sir Nikola Tesla
  2. Sir Rudolf Diesel
  3. Sir Schuyler Skaats Wheeler
  4. Sir Donald L. Hings
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Walkies Talkies Apps (Android & iOS)

8th Class Science Test Questions

8th Class Science Quiz with Answers