This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 28 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 78% of the gas that makes up the atmosphere is ..... ? A) Oxygen. B) Ozone. C) Nitrogen. D) Carbon Dioxide. Show Answer Correct Answer: C) Nitrogen. 2. The lower the pressure, the ..... A) Better the weather. B) Worse the weather. C) All the above. D) None of the above. Show Answer Correct Answer: B) Worse the weather. 3. The person who looks after you during a flight is the ..... A) Flight helper. B) Pilot. C) Flight attendant. D) Flight band. Show Answer Correct Answer: C) Flight attendant. 4. Oxygen is not used for respiration. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. What causes the seasons to change? (hint:Use the model you selected on the previous question to help you) A) The distance between the Earth and the sun. B) The distance from the equator. C) The Earth's tilt in relation to the sun. D) Earth's rotation and revolution. Show Answer Correct Answer: C) The Earth's tilt in relation to the sun. 6. When we switch on a fan, we feel ..... A) Fresh. B) Cool. C) Hot. D) None of the above. Show Answer Correct Answer: B) Cool. 7. Which amongst the following is not a property of Air? A) Air has mass. B) Air has volume. C) Air can be heated or cooled. D) Air is oxygen. Show Answer Correct Answer: D) Air is oxygen. 8. The composition of air consists of ..... key components. A) Seven. B) Three. C) Ten. D) None of the above. Show Answer Correct Answer: B) Three. 9. The major horizontal surface on an airplane that provides lift. A) Aileron. B) Rudder. C) Wing. D) Flaps. Show Answer Correct Answer: C) Wing. 10. Pumping up a tire A) More pressure going inside tire. B) More pressure going out of the tire. C) Equal pressure. D) None of the above. Show Answer Correct Answer: A) More pressure going inside tire. 11. The air ..... a wing tends to move faster than the air below it. A) Above. B) Below. C) Beside. D) Inside. Show Answer Correct Answer: A) Above. 12. It is the condition of the atmosphere over a certain period of time. A) Climate. B) Evaporation. C) Precipitation. D) Weather. Show Answer Correct Answer: D) Weather. 13. What are some of the effects of air pollution on humans? A) Heart disease. B) Global warming. C) Ozone depletion. D) All of the above. Show Answer Correct Answer: D) All of the above. 14. How much oxygen is in the air? (%) A) 25%. B) 21%. C) 68%. D) 50%. Show Answer Correct Answer: B) 21%. 15. Hurricanes and tornadoes are products of which pressure system? A) High pressure. B) Low pressure. C) Medium pressure. D) Peer pressure. Show Answer Correct Answer: B) Low pressure. 16. The place where two air masses meet. A) Air mass. B) Air pressure. C) Water cycle. D) Front. Show Answer Correct Answer: D) Front. 17. Another term for burning is A) Fire triangle. B) Magnesium oxide. C) Combustion. D) Bustion. Show Answer Correct Answer: C) Combustion. 18. Combustion requires two components: A) Fuel and oxygen. B) Fuel only. C) Carbon dioxide. D) All of the above. Show Answer Correct Answer: A) Fuel and oxygen. 19. If you have something to declare, you will get to the ..... Channel. A) RED. B) YELLOW. C) GREEN. D) BLACK. Show Answer Correct Answer: A) RED. 20. What kind of air should we breath? A) Clean. B) Dusty. C) Dirty. D) None of the above. Show Answer Correct Answer: A) Clean. 21. What information can be found in the section titled "What Happened" ? A) Why air is important. B) The purpose of air. C) What happens when air is added to a balloon. D) The purpose of wind. Show Answer Correct Answer: C) What happens when air is added to a balloon. 22. Weather is caused due to ..... A) Sun. B) Wind. C) Both. D) None of the above. Show Answer Correct Answer: C) Both. 23. Air is all around us. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. The ..... present in soil help to convert the atmospheric nitrogen into nitrateand ammonium salts. A) Bacteria. B) Virus. C) Fungus. D) None of these. Show Answer Correct Answer: A) Bacteria. 25. Phosphorus Pentoxide Gas combine with water to form A) Phosphorus. B) Phosphoric acid. C) None. D) None of the above. Show Answer Correct Answer: B) Phosphoric acid. ← 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