MCQ Practice Science 📖 Which one of the completed the 100th anniversary of its discovery in 1995? ক detergentsখ diesel engineগ photographyঘ X-rays Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up Previous Which one is a renewable energy source? Next Which one of the following contributes largely to the green-house gas effect?