This quiz works best with JavaScript enabled. Home > Class 6 > Class 6 Science Chapter 15 Air Around Us – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 15 Air Around Us Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Air does not have weight A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 2. The undesirable substances are called ..... A) Pollotants. B) Pollution. C) Pollutants. D) Pollutiontants. Show Answer Correct Answer: C) Pollutants. 3. What gas is 21% in our air? A) Other gases. B) Oxygen. C) Nitrogen. D) None of the above. Show Answer Correct Answer: B) Oxygen. 4. Air is present in, atmosphere, water and ..... A) SOIL. B) FERTILIZERS. C) All the above. D) None of the above. Show Answer Correct Answer: A) SOIL. 5. Which of the following layers of atmosphere is free from clouds? A) Troposphere. B) Stratosphere. C) Exosphere. D) Mesosphere. Show Answer Correct Answer: B) Stratosphere. 6. What is a Wind vane used for? A) Helps the wind to flow. B) Makes the air clean. C) To show the direction of wind. D) Creates wind. Show Answer Correct Answer: C) To show the direction of wind. 7. Arrange the jumbled words MESKO ..... A) Mask. B) Water. C) Smoke. D) Crown. Show Answer Correct Answer: C) Smoke. 8. State true or false Air is a mixture of gases ..... A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. The presence of which of these components in the air varies from place to place? A) Oxygen. B) Nitrogen. C) Carbon dioxide. D) Water vapour. Show Answer Correct Answer: D) Water vapour. 10. The humans do not depend on plants for one of the following. This one is A) Food. B) Fuel. C) Carbon Dioxide. D) Oxygen. Show Answer Correct Answer: C) Carbon Dioxide. 11. Why does a lump of cotton wool shrink in water? A) It becomes heavy. B) The air molecules trapped in the fibres get replaced by water molecules. C) Both (a) and (b). D) None of the above. Show Answer Correct Answer: C) Both (a) and (b). 12. The gas essential for respiration is A) Carbon dioxide. B) Nitrogen. C) Hydrogen. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 13. Who invented the watermill, which is a generator?? A) Researchers. B) Scientists. C) Historians. D) Physicians. Show Answer Correct Answer: A) Researchers. 14. Which gas does not support burning? A) Nitrogen. B) Methane. C) Nitrous Oxide. D) Sulphur Dioxide. Show Answer Correct Answer: A) Nitrogen. 15. Air is a ..... of gases. A) Element. B) Solution. C) Mixture. D) None of the above. Show Answer Correct Answer: C) Mixture. 16. Air is considered to be A) A compound. B) A mixture. C) An element. D) A solvent. Show Answer Correct Answer: B) A mixture. 17. Contains few gases and fire dust particles. A) Wind. B) Vapour. C) Atmosphere. D) Smoke. Show Answer Correct Answer: D) Smoke. 18. Air Around Us A) It is a mixture of gases. B) It is a compound. C) It is a pure substance. D) It is a single element. Show Answer Correct Answer: A) It is a mixture of gases. 19. Which gas is the most common in our air? A) Nitrogen. B) Hydrogen. C) Helium. D) Oxygen. Show Answer Correct Answer: A) Nitrogen. 20. AIR IN MOTION IS CALLED ..... A) WIND. B) AIR. C) ATMOSPHERE. D) NONE OF THESE. Show Answer Correct Answer: A) WIND. 21. What gas in the air is causing global warming? A) Nitrogen. B) Oxygen. C) Carbon Doixide. D) Argon. Show Answer Correct Answer: C) Carbon Doixide. 22. Air has no role in water cycle. TRUE or FALSE? A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 23. These are the principal agents of ozone depletion. A) Chlorofluorocarbons. B) Acid precipitation. C) Photochemical oxidants. D) None of the above. Show Answer Correct Answer: A) Chlorofluorocarbons. 24. Which of these can plants not absorb directly from the atmosphere. A) Oxygen. B) Nitrogen. C) Carbon dioxide. D) All of these. Show Answer Correct Answer: B) Nitrogen. 25. Meaning of smoke A) Air with carbon-monoxide. B) Air pollution. C) Air we breath. D) Air with dust particles. Show Answer Correct Answer: D) Air with dust particles. ← 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