MCQ Practice Science 📖 Which of the following is necessary for a substance to burn? ক gasolineখ hydrogenগ lightঘ oxygen 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 of the following is a unit of pressure? Next Which of the following is not a constituent of the atmosphere?
