This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 27 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 27 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Breathing in of air causes the chest cavity to ..... A) Contract. B) Expand. C) All the above. D) None of the above. Show Answer Correct Answer: B) Expand. 2. PrayerHas what /air/ spelling A) . B) . C) . D) . Show Answer Correct Answer: C) . 3. What is the name of the instrument used to measure atmospheric pressure? A) Barometer. B) Thermometer. C) Wind vane. D) None of the above. Show Answer Correct Answer: A) Barometer. 4. Which of the following products contains harmful CFC's? A) Refrigerator. B) Spray paint cans. C) Aerosol hairspray cans. D) All of these. Show Answer Correct Answer: D) All of these. 5. Pollution of SO2 destroys: A) Fungi. B) Lichen. C) Algae. D) Fishes. Show Answer Correct Answer: B) Lichen. 6. What happens during sea breeze? A) The cooler air that moves from the sea towards the land during night time. B) The warmer air that moves from the sea towards the land during daytime. C) The cooler air that moves from the sea towards the land during daytime. D) The cooler air that moves from the land towards the sea during daytime. Show Answer Correct Answer: C) The cooler air that moves from the sea towards the land during daytime. 7. What kind of pressure system is light and rises bringing wet, cloudy weather A) High pressure system. B) Low pressure system. C) All the above. D) None of the above. Show Answer Correct Answer: B) Low pressure system. 8. ..... gas in the air that helps plants make their own food. A) Carbon dioxide. B) Nitrogen. C) Oxygen. D) None of the above. Show Answer Correct Answer: A) Carbon dioxide. 9. During inhalation, which is true? A) The diaphragm curves and moves upwards. B) The thoracic cavity becomes smaller. C) Air pressure in the lungs increase. D) The rib cage moves down. Show Answer Correct Answer: C) Air pressure in the lungs increase. 10. TRUE or FALSE:Many people on Earth do not have access to clean water. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 11. Hot air ..... and cold air ..... A) Sinks, Rises. B) Rises, Sink. C) Is fun, is lazy. D) None of the above. Show Answer Correct Answer: B) Rises, Sink. 12. The larger the parachute the ..... A) Less air resistance. B) More surface tension. C) Less drag. D) More drag. Show Answer Correct Answer: D) More drag. 13. How does letting out hot air make the balloon sink? A) Since there is more hot air, the balloon can keep the same weight in the air. B) Since there is less hot air, the balloon cannot keep the same weight in the air. C) Since there is less hot air, it doesn't matter what happens to the balloon. D) Since there is more hot air, the balloon will land fine. Show Answer Correct Answer: B) Since there is less hot air, the balloon cannot keep the same weight in the air. 14. Death rates are highest in which type of country A) Low to medium income. B) Low income. C) Medium to high income. D) Medium income. Show Answer Correct Answer: A) Low to medium income. 15. Air takes up space and ..... pressure. A) Raises. B) Lowers. C) Exerts. D) Provides. Show Answer Correct Answer: C) Exerts. 16. Which gases make the bulk of the atmosphere? A) Nitrogen. B) Oxygen. C) Both a and b. D) None of these. Show Answer Correct Answer: C) Both a and b. 17. In gases molecules are packed A) Loosely. B) Very loosely. C) All the above. D) None of the above. Show Answer Correct Answer: B) Very loosely. 18. One student said, " Both air particles and water particles in the bottle get compressed when the jar is squeezed. Do you agree or disagree? A) I disagree. Air particles can be compressed, but you cant change the volume of liquid water (It cant be compressed). B) I agree. Air particles cant be compressed, but you can change the volume of water. C) All the above. D) None of the above. Show Answer Correct Answer: A) I disagree. Air particles can be compressed, but you cant change the volume of liquid water (It cant be compressed). 19. A rapid growth of algae could lead to: A) A reduction of oxygen levels in the water. B) Water that can support more life. C) An increase in oxygen levels. D) None of the above. Show Answer Correct Answer: A) A reduction of oxygen levels in the water. 20. Wind does not help in the movement of which of the following? A) Spinning. B) Wind mill. C) Ceiling fan. D) Sailing yacht. Show Answer Correct Answer: C) Ceiling fan. 21. When sulfur dioxide and nitrogen monoxide combine with moisture in the atmosphere and form precipitation with a lower ph then normal rain water it forms A) Pollution in the air. B) Acid rain. C) Acid precipitation. D) A and c. E) B and c. Show Answer Correct Answer: E) B and c. 22. Cold air exerts ..... pressure than warm air. A) The same. B) More. C) Less. D) None of the above. Show Answer Correct Answer: B) More. 23. Does air contains water vapour? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 24. The place at an airport, or border where travelers' bags are examined for illegal or taxable goods. A) Gate. B) Departure lounge. C) Customs. D) Visa. Show Answer Correct Answer: C) Customs. 25. Which range indicates a base/alkaline? A) 1-6. B) 8-14. C) All the above. D) None of the above. Show Answer Correct Answer: B) 8-14. ← 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