This quiz works best with JavaScript enabled. Home > Class 6 > Class 6 Science Chapter 15 Air Around Us – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 15 Air Around Us Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Air occupies space and has: A) Colour. B) Smell. C) Mass. D) None of these. Show Answer Correct Answer: C) Mass. 2. 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. 3. Which air dose not support burning of fire? A) Oxygen. B) Nitrogen. C) Carbon-dioxide. D) All. Show Answer Correct Answer: B) Nitrogen. 4. Plants and animals depend on each other for exchange of ..... and ..... from air. A) Oxygen, carbon dioxide. B) Carbon dioxide, nitrogen. C) Nitrogen, neon. D) Argon, krypton. Show Answer Correct Answer: A) Oxygen, carbon dioxide. 5. Mountaineers carry cylinders with them. A) Carbon Dioxide. B) Nitrogen. C) Water. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 6. What causes the fizz sound while opening a cold drink bottle? A) The water. B) The sugar. C) The air. D) None of the above. Show Answer Correct Answer: C) The air. 7. What is the Outer Layer of the Earth? A) Atmosphere. B) There are no Layers. C) Troposphere. D) Stratosphere. E) I Don't Know. Show Answer Correct Answer: A) Atmosphere. 8. Which gas is the major part of air? A) Oxygen. B) Carbon dioxide. C) Nitrogen. D) Water vapor. Show Answer Correct Answer: C) Nitrogen. 9. Which out the following gases supports burning? A) Nitrogen. B) Oxygen. C) Argon. D) Carbon di-Oxide. Show Answer Correct Answer: B) Oxygen. 10. The process of absorbing carbon dioxide from air and preparing the food by plants is called ..... A) Transpiration. B) Photosynthesis. C) Breathing of plants. D) None of the above. Show Answer Correct Answer: B) Photosynthesis. 11. Living things need Nitrogen for ..... A) Living. B) Shrinking. C) Growth. D) Breathing. Show Answer Correct Answer: C) Growth. 12. Mountaineers carry oxygen cylinder with them because A) There is no oxygen on high mountains. B) There is deficiency of oxygen on mountains at high altitude. C) Oxygen is used for cooking. D) Oxygen keeps them warm at low temperature. Show Answer Correct Answer: B) There is deficiency of oxygen on mountains at high altitude. 13. What is air made up of? A) Oxygen, Hydrogen, Helium, Dust and smoke. B) Oxygen, Water Vapour, Carbon-dioxide, Nitrogen, Dust and Smoke. C) Carbon-dioxide, Helium, Dust and Oxygen. D) Carbon-monoxide, Nitrogen, Helium, Dust and Water Vapour. Show Answer Correct Answer: B) Oxygen, Water Vapour, Carbon-dioxide, Nitrogen, Dust and Smoke. 14. Which gas is needed for respiration? A) Nitrogen. B) Oxygen. C) Carbon Dioxide. D) Hydrogen. Show Answer Correct Answer: B) Oxygen. 15. What gas can't plant absorb directly? A) Oxygen. B) Methane. C) Nitrogen. D) All of these. Show Answer Correct Answer: C) Nitrogen. 16. The largest amount of gas in the air is A) Nitrogen. B) Carbon dioxide. C) Argon. D) Oxygen. Show Answer Correct Answer: A) Nitrogen. 17. ..... gas occupies the major part of composition of air. A) Nitrogen. B) Oxygen. C) Carbon dioxide. D) None of the above. Show Answer Correct Answer: A) Nitrogen. 18. What is required for photosynthesis? A) Sunlight. B) Heat. C) Water vapor. D) Oxygen. Show Answer Correct Answer: A) Sunlight. 19. Which gas is used for respiration by living things? A) Oxygen. B) Nitrogen. C) Carbon dioxide. D) Ozone. Show Answer Correct Answer: A) Oxygen. 20. Which of the following lives in the soil? A) Crocodile. B) Earthworm. C) Squirrel. D) Dog. Show Answer Correct Answer: B) Earthworm. 21. How do plants get nitrogen from the air? A) They do not. B) From their leaves. C) From their stomata. D) From their roots. Show Answer Correct Answer: A) They do not. 22. Fill in the blank:The ..... makes the windmill rotate A) Water. B) Wind. C) Soil. D) Machines. Show Answer Correct Answer: B) Wind. 23. Which gas is produced when something is burned? A) Carbon Dioxide. B) Oxygen. C) Nitrogen. D) None of the above. Show Answer Correct Answer: A) Carbon Dioxide. 24. Air helps in the movements of sailing yachts and glider but plays no role in the flight of birds and aeroplanes. TRUE or FALSE? A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 25. What gas is 78% of our air? A) Oxygen. B) Other gases. C) Nitrogen. D) None of the above. Show Answer Correct Answer: C) Nitrogen. ← 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 8Class 6 Science Chapter 15 Air Around Us Quiz 9Class 6 Science Chapter 15 Air Around Us Quiz 10Class 6 Science Chapter 15 Air Around Us Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books