This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 41 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 41 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which is true of air pollution and human health? A) Years of research link air pollution to lung diseases, birth defects, and cancer. B) Air pollution is commonly listed as a cause of death. C) None of the health effects of air pollution are reversible. D) Healthy adults are most affected by air pollution. Show Answer Correct Answer: A) Years of research link air pollution to lung diseases, birth defects, and cancer. 2. The clean air act gives the U.S the power to set air quality standards. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 3. How does air pollution affect human health? A) It can cause respiratory problems. B) It makes us obese. C) We feel constipated. D) All of the above. Show Answer Correct Answer: A) It can cause respiratory problems. 4. Which is not a way in which air pressure helps us? A) Pumping of water through a hand pump. B) Filling ink in a fountain pen. C) Flying kites. D) Drinking water. Show Answer Correct Answer: D) Drinking water. 5. Warm air A) Rises. B) Sinks. C) All the above. D) None of the above. Show Answer Correct Answer: A) Rises. 6. What is the waste product of respiration? A) Carbon Dioxide. B) Oxygen. C) Nitrogen. D) None of the above. Show Answer Correct Answer: A) Carbon Dioxide. 7. What type of air mass has cool, dry air and forms over land? A) Maritime Tropical. B) Maritime Polar. C) Continental Tropical. D) Continental Polar. Show Answer Correct Answer: D) Continental Polar. 8. Cyclone Collectors works with the principles of A) Gravitational force. B) Centrifugal force. C) Both the force. D) None of the above. Show Answer Correct Answer: B) Centrifugal force. 9. A continuous moving strip on which passengers' bags are put for collection in an airport. A) Carousel. B) Baggage reclaim. C) Gate. D) None of the above. Show Answer Correct Answer: A) Carousel. 10. The pilots and other people who work in the plane are the ..... A) Cabin crew. B) Flight team. C) Staff. D) Flight band. Show Answer Correct Answer: A) Cabin crew. 11. The higher the temperature the ..... is the solubility of air in water A) Lower. B) Medium. C) Higher. D) None of these. Show Answer Correct Answer: A) Lower. 12. What does MAC stand for? A) MobileAir Conditioning. B) Mechanical Air Conditioning. C) Mobile Air Compressor. D) Mechanical Air Compressor. Show Answer Correct Answer: A) MobileAir Conditioning. 13. We can see air but cannot feel air A) True. B) False. C) I do not know. D) None of the above. Show Answer Correct Answer: B) False. 14. There are three States of matter. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. ..... are very small living things that make people ill. A) Germs. B) Smoke. C) Dust. D) Water vapour. Show Answer Correct Answer: A) Germs. 16. What types of air masses form over land? A) Maritime. B) Continental. C) Polar. D) Tropical. Show Answer Correct Answer: B) Continental. 17. ..... is a harmful metal present in petrol, diesel, lead batteries, paints, paints, and dyes. A) Sulphur Trioxide. B) Sulphur Dioxide. C) Lead. D) None of the above. Show Answer Correct Answer: C) Lead. 18. When air moves from sea to land during day time, it is called ..... A) Sea breeze. B) Land breeze. C) Breeze. D) Wind. Show Answer Correct Answer: A) Sea breeze. 19. When air is heated A) Lighter goes up and cold air is denser. B) Light air goes down and Coll air goes up. C) Light air don't move and cool air moves. D) None of the above. Show Answer Correct Answer: A) Lighter goes up and cold air is denser. 20. A balloon or rubber gloves ..... as more and more air is put in it. A) Expands. B) Squeezed. C) Pumps. D) Pop. Show Answer Correct Answer: A) Expands. 21. The upward force which is exerted against a falling object is A) Gravity. B) Terminal velocity. C) Air resistance. D) Intertia. Show Answer Correct Answer: C) Air resistance. 22. Which of these is present in air? A) Glass. B) Grass. C) Smoke. D) None of the above. Show Answer Correct Answer: C) Smoke. 23. The word 'compressed' means ..... A) To have fun. B) To press tightly. C) All the above. D) None of the above. Show Answer Correct Answer: B) To press tightly. 24. What kind of air pressure does dense air have? A) Normal air pressure. B) High air pressure. C) Low air pressure. D) None of the above. Show Answer Correct Answer: B) High air pressure. 25. Where is the Ozone Layer found in our atmosphere? A) Troposphere (lower portion). B) Stratosphere (upper portion). C) All the above. D) None of the above. Show Answer Correct Answer: B) Stratosphere (upper portion). ← 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