This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 22 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which type of air mass brings WARM and DRY weather? A) Maritime Polar (mP). B) Maritime Tropical (mT). C) Continental Polar (cP). D) Continental Tropical (cT). Show Answer Correct Answer: D) Continental Tropical (cT). 2. A radioactive gas that can build up in homes. A) Uranium. B) Helium. C) Oxygen. D) Radon. Show Answer Correct Answer: D) Radon. 3. What is the function of the ozone layer? A) To allow UV rays to get to Earth. B) To block UV rays from getting to Earth. C) To keep oxygen in. D) To allow meteors to get to Earth. Show Answer Correct Answer: B) To block UV rays from getting to Earth. 4. What is breeze? A) Gentle wind. B) Fast wind. C) All the above. D) None of the above. Show Answer Correct Answer: A) Gentle wind. 5. High pressure will usually bring what kind of weather? A) Clear and dry. B) Cloudy and wet. C) All the above. D) None of the above. Show Answer Correct Answer: A) Clear and dry. 6. Balance of oxygen and carbon dioxide in air is maintained by ..... A) Plants only. B) Animals only. C) Both plants and animals. D) Moving vechiles. Show Answer Correct Answer: C) Both plants and animals. 7. Which is an effect of acid rain? A) Asthma. B) Cleaner freshwater. C) Destroyed forests and trees. D) Increased manufacturing. Show Answer Correct Answer: C) Destroyed forests and trees. 8. Air pollution is when unwanted chemicals, gasses, and particles enter the air and the atmosphere causing harm to animals and damaging the natural cycles of the Earth. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. A person who travels on a plane is ..... A) Cabin crew. B) Client. C) Customer. D) Passenger. Show Answer Correct Answer: D) Passenger. 10. Which gas is needed for photosynthesis A) Oxygen. B) Nitrogen. C) Carbon dioxide. D) Hydrogen. Show Answer Correct Answer: C) Carbon dioxide. 11. Moist air is ..... than dry air. A) Lighter. B) Heavier. C) All the above. D) None of the above. Show Answer Correct Answer: A) Lighter. 12. How many types of air is there? A) 9. B) 102. C) 5. D) 1. Show Answer Correct Answer: D) 1. 13. Which of the following is a cause to air pollution? A) Nasal irritation. B) Vehicles. C) Eye irritation. D) Recycle. Show Answer Correct Answer: B) Vehicles. 14. To show the presence of water vapour in air, wipe the glass tumbler from outside so that, A) No water is sticking to it. B) No chemical is sticking to it. C) No Limewater is sticking to it. D) None. Show Answer Correct Answer: A) No water is sticking to it. 15. Choose the WRONG action. A) We should cover our mouth while sneezing. B) We should keep our towel separate from others. C) We should open our mouth while sneezing. D) We should wash our hands with soap after sneezing. Show Answer Correct Answer: C) We should open our mouth while sneezing. 16. How much is the percentage of CO$_{2 }$in air? A) 21. B) 0.03. C) All the above. D) None of the above. Show Answer Correct Answer: B) 0.03. 17. What do we call the activity of regular travelling there and back in one day-to school or to work? A) Converting. B) Communing. C) Commuting. D) Comoning. Show Answer Correct Answer: C) Commuting. 18. Plants take in air through tiny holes called ..... A) Sun. B) Ball. C) Stomata. D) Balloons. Show Answer Correct Answer: C) Stomata. 19. In a high pressure area, the weather will likely be A) Cooler and clear skies. B) Warm but cloudy. C) Cold and rainy. D) Snowy and clear. Show Answer Correct Answer: A) Cooler and clear skies. 20. What helps oxygen to be absorbed rapidly into the blood in the lungs? A) Air breathed in has less oxygen than air breathed out. B) Alveoli have thick walls and a large surface area. C) Alveoli have thin walls and a large surface area. D) The concentration of oxygen in the blood is higher than in the alveoli. Show Answer Correct Answer: C) Alveoli have thin walls and a large surface area. 21. Which of these materials do you predict would have the MOST amount of friction? A) Metal. B) Tile. C) Sand paper. D) Denim. Show Answer Correct Answer: C) Sand paper. 22. Ventilation is one of the major control to be taken to reduce A) Air pollution. B) Indoor air pollution. C) Noise pollution. D) Sick building syndrome. Show Answer Correct Answer: B) Indoor air pollution. 23. What are the two processes that add carbon dioxide into the atmosphere A) Photosynthesis. B) Respiration and photosynthesis. C) Respiration and decomposition. D) None of the above. Show Answer Correct Answer: C) Respiration and decomposition. 24. When air moves it is called wind. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. What does COSHH stand for? A) Control of Substances Hazardous tohealth. B) Company omissions of safe Health hazards. C) Control of solutions hazardous to health. D) Control of Substances which are health hazardous. Show Answer Correct Answer: A) Control of Substances Hazardous tohealth. ← PreviousNext →Related QuizzesClass 7 Geography Chapter 4 Air Quiz 1Class 7 Geography Chapter 4 Air Quiz 2Class 7 Geography Chapter 4 Air Quiz 3Class 7 Geography Chapter 4 Air Quiz 4Class 7 Geography Chapter 4 Air Quiz 5Class 7 Geography Chapter 4 Air Quiz 6Class 7 Geography Chapter 4 Air Quiz 7Class 7 Geography Chapter 4 Air Quiz 8Class 7 Geography Chapter 4 Air Quiz 9Class 7 Geography Chapter 4 Air Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books