This quiz works best with JavaScript enabled. Home > Class 6 > Class 6 Science Chapter 15 Air Around Us – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 15 Air Around Us Quiz 11 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What air is filled in the tires of Airplanes?? A) Carbon dioxide. B) Oxygen. C) Nitrogen. D) None of the above. Show Answer Correct Answer: C) Nitrogen. 2. Where is air found? A) Inside You. B) Everywhere. C) Nowhere. D) In a balloon. Show Answer Correct Answer: B) Everywhere. 3. Which of these makes up about 21 percent of the atmosphere? A) Argon. B) Carbon dioxide. C) Nitrogen. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 4. What is the most abundant gas in Earth's atmosphere? A) Nitrogen. B) Oxygen. C) Carbon dioxide. D) Argon. Show Answer Correct Answer: A) Nitrogen. 5. The air over industrial cities usually has a higher amount of ..... A) Nitrogen. B) Argon. C) Carbon dioxde. D) Oxygen. Show Answer Correct Answer: C) Carbon dioxde. 6. Why do mountaineers carry oxygen cylinders with them at high altitude A) To get oxygen at high altitude. B) To get nitrogen at high altitude. C) To get water vapour at high altitude. D) To get helium at high altitude. Show Answer Correct Answer: A) To get oxygen at high altitude. 7. What is the percentage of nitrogen in the air? A) 78%. B) 21%. C) 1%. D) 0.035. Show Answer Correct Answer: A) 78%. 8. The envelope of air that surrounds the earth is called ..... A) Atmosphere. B) Hydrosphere. C) Lithosphere. D) None of the above. Show Answer Correct Answer: A) Atmosphere. 9. Is carbon dioxide important for only animals? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 10. What is a water vapour?page86 Rupa.A A) Water vapour is a solid state of water. B) Water vapour is a type of fish. C) Water vapour is the gaseous state of water. D) Water vapour is a form of electricity. Show Answer Correct Answer: C) Water vapour is the gaseous state of water. 11. Air is made up mostly of A) Oxygen. B) Carbon. C) Nitrogen. D) Hydrogen. Show Answer Correct Answer: C) Nitrogen. 12. Mountaineers carry ..... in cylinder A) Carbon dioxide. B) Oxygen. C) Air. D) Nitrogen. Show Answer Correct Answer: B) Oxygen. 13. What is the percentage of oxygen in air? A) 21%. B) 78%. C) 99%. D) 1%. Show Answer Correct Answer: A) 21%. 14. Air helps in the movements of sailing yachts, gliders, parachutes and aeroplanes. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. The presence of water vapour in air is important for A) Ozone layer. B) Water cycle. C) Combustion. D) None. Show Answer Correct Answer: B) Water cycle. 16. Oxygen constitutes 21% of the air A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. Clouds are made of water vapor (gas). A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 18. The Layer of air around the earth is known as A) Nitrogen. B) Atmosphere. C) Oxygen. D) Water vapor. Show Answer Correct Answer: B) Atmosphere. 19. Windmills cannot be used to draw water from wells. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 20. Which of the gas is a major source of air pollution? A) Oxygen. B) Nitrogen. C) Water vapour. D) Carbon dioxide. Show Answer Correct Answer: D) Carbon dioxide. 21. Our earth is surrounded by ..... A) AIR. B) BIOSPHERE. C) All the above. D) None of the above. Show Answer Correct Answer: A) AIR. 22. Which of the following genrates electricity through air A) Water mill. B) Wind mill. C) Thread mill. D) Air mill. Show Answer Correct Answer: B) Wind mill. 23. Have you never sceen Air? Page84Laxman.Y A) Yes, I have seen Water. B) Yes, I have seen Fire. C) No, I have never seen Air. D) Yes, I have seen Air. Show Answer Correct Answer: D) Yes, I have seen Air. 24. Which layer protects us from the ultraviolet rays of the sun? A) Nitrogen Layer. B) Oxygen Layer. C) Methane Layer. D) None of the above. Show Answer Correct Answer: D) None of the above. 25. Blowing air is called??? A) Wind. B) Breeze. C) Storm. D) None of the above. Show Answer Correct Answer: A) Wind. ← PreviousNext →Related QuizzesClass 6 Science Chapter 15 Air Around Us Quiz 1Class 6 Science Chapter 15 Air Around Us Quiz 2Class 6 Science Chapter 15 Air Around Us Quiz 3Class 6 Science Chapter 15 Air Around Us Quiz 4Class 6 Science Chapter 15 Air Around Us Quiz 5Class 6 Science Chapter 15 Air Around Us Quiz 6Class 6 Science Chapter 15 Air Around Us Quiz 7Class 6 Science Chapter 15 Air Around Us Quiz 8Class 6 Science Chapter 15 Air Around Us Quiz 9Class 6 Science Chapter 15 Air Around Us Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books