This quiz works best with JavaScript enabled. Home > Class 6 > Class 6 Science Chapter 15 Air Around Us – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 15 Air Around Us Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A mixture of smoke and fog in the Air. A) Clouds. B) Smog. C) Wheezing. D) Storm. Show Answer Correct Answer: B) Smog. 2. Air takes up ..... A) Space. B) Weight. C) Water. D) Height. Show Answer Correct Answer: A) Space. 3. The composition of nitrogen gas in the atmosphere is A) 21%. B) 78%. C) 1%. D) 0.01%. Show Answer Correct Answer: B) 78%. 4. Which of the following statement is true about air? A) There are more air particles higher up. B) The highest air pressure is at the Earth's surface. C) The lowest air pressure is at the Earth's surface. D) Air becomes thicker as you go higher up. Show Answer Correct Answer: B) The highest air pressure is at the Earth's surface. 5. Carbon dioxide has ..... taste? A) Sweet. B) Bad. C) Sour. D) Good. Show Answer Correct Answer: C) Sour. 6. Mountaineers carry ..... cylinder with them when climbing mountain A) Oxygen. B) Nitrogen. C) Hydrogen. D) CO2. Show Answer Correct Answer: A) Oxygen. 7. What gas do plants use during photosynthesis? A) Carbon dioxide. B) Oxygen. C) Nitrogen. D) Argon. Show Answer Correct Answer: A) Carbon dioxide. 8. What is a water vapour A) Sweat. B) It is present in the air when it come with contact with cool surface rain comes. C) No, idea. D) Condensation. Show Answer Correct Answer: B) It is present in the air when it come with contact with cool surface rain comes. 9. We can see air? A) No. B) Yes. C) All the above. D) None of the above. Show Answer Correct Answer: A) No. 10. Which gas of the following to plants need for photosynthesis? A) Xenon. B) Ozone. C) Oxygen. D) Carbon Dioxide. Show Answer Correct Answer: D) Carbon Dioxide. 11. The blanket 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. 12. Why is it not favorable to burn leaves? A) It makes the leaves giant. B) It produces harmful gases. C) It doesn't do anything. D) All of the above. Show Answer Correct Answer: B) It produces harmful gases. 13. Air around us exerts ..... A) Pressure. B) Wind. C) Heating. D) Low. Show Answer Correct Answer: A) Pressure. 14. The process by which energy is produced from the food taken A) Respiration. B) Photosynthesis. C) Digestion. D) None of the above. Show Answer Correct Answer: A) Respiration. 15. How many types of pollution are there? A) 2. B) 4. C) 5. D) 6. Show Answer Correct Answer: C) 5. 16. Which gas contains dust particles? A) Smoke. B) Dust. C) Both a&b. D) Only b. Show Answer Correct Answer: A) Smoke. 17. As altitude increases, air pressure ..... A) Increases. B) Decreases. C) Stays the same. D) Deflects due to the Coriolis Effect. Show Answer Correct Answer: B) Decreases. 18. What are the properties of air? A) It occupies space. B) It is present everywhere around us. C) It has no colour and is transparent. D) All of the above. Show Answer Correct Answer: D) All of the above. 19. The solubility ..... with increase in temperature. A) Doesn't change. B) Decreases. C) Increases. D) None of the above. Show Answer Correct Answer: C) Increases. 20. What is the primary component of the air we breathe? A) Nitrogen. B) Oxygen. C) Carbon Dioxide. D) Argon. Show Answer Correct Answer: A) Nitrogen. 21. Air is a compound and not an element A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 22. Air cannot be ..... but can be ..... A) Felt, seen. B) Seen, felt. C) Seen, heard. D) Heard, seen. Show Answer Correct Answer: B) Seen, felt. 23. What is Humidity A) The amount of water vapour present in air. B) The amount of oxygen present in air. C) More heat in the atmosphere. D) None of the above. Show Answer Correct Answer: A) The amount of water vapour present in air. 24. Air is mostly made up of what two gases? A) Oxygen and nitrogen. B) Oxygen and hydrogen. C) Hydrogen and helium. D) Nitrogen and hydrogen. Show Answer Correct Answer: A) Oxygen and nitrogen. 25. The layer of the atmosphere containing the ozone layer is A) Troposphere. B) Stratosphere. C) Thermosphere. D) Mesosphere. Show Answer Correct Answer: B) Stratosphere. ← 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books