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Inventions MCQs (Grade 8) From Textbook

Inventions MCQs – Certification Test 645

Concrete Trivia (Question 645) – App & e-Book Download

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MCQ 645: Concrete was discovered by:

  1. Sir Willem Kloff
  2. Sir Joseph Monier
  3. Sir George Smith
  4. Sir Willard Boyle
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8th Class Science Test Questions

8th Class Science Quiz with Answers