This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When the air is heated it becomes A) Lighter. B) Heavier. C) Colder. D) None of these. Show Answer Correct Answer: A) Lighter. 2. What is aerodynamic? A) Car speed. B) The way air moves around things. C) The car body. D) None of the above. Show Answer Correct Answer: B) The way air moves around things. 3. What are the effects of air pollution on wildlife? A) Animals start feeling happy. B) It contributes to habitat loss. C) It gives animals a longer life-span. D) All of the above. Show Answer Correct Answer: B) It contributes to habitat loss. 4. What historical events had an effect on ballooning? A) Kite flying and fire. B) Drawings, kite flying, and silk. C) Lighting a fire under paper. D) Kite flying, stories, drawings, lighting a fire under paper and silk. Show Answer Correct Answer: D) Kite flying, stories, drawings, lighting a fire under paper and silk. 5. More molecules close together, means density is: A) High. B) Low. C) All the above. D) None of the above. Show Answer Correct Answer: A) High. 6. At what temprature does water boil in? A) 1000$^\circ$ c. B) 200$^\circ$ c. C) 100$^\circ$ c. D) 50$^\circ$ c. Show Answer Correct Answer: C) 100$^\circ$ c. 7. What is the % of nitrogen in air? A) 75%. B) 71%. C) 78%. D) 60%. Show Answer Correct Answer: C) 78%. 8. When the heat stored in the body is ..... the human body feels comfortable. A) Zero. B) Infinite. C) Positive. D) Negative. Show Answer Correct Answer: A) Zero. 9. In which war did the Tuskegee Airmen serve? A) Civil War. B) World War I. C) World War II. D) Vietnam War. Show Answer Correct Answer: C) World War II. 10. Which of the following causes air pollution? A) Burning fossil fuels to drive cars. B) Burning fossil fuels to make electricity. C) Factories. D) All of the above. Show Answer Correct Answer: D) All of the above. 11. Which of these gets shape with the help of air? A) Fan. B) Chair. C) Balloon. D) None of the above. Show Answer Correct Answer: C) Balloon. 12. Why is a football filled with air heavier than a flat one? A) Because air has weight. B) Because it is filled with water. C) All the above. D) None of the above. Show Answer Correct Answer: A) Because air has weight. 13. A flight which goes across continents is usually called a ..... flight. A) High. B) Long-haul. C) Direct. D) Connecting. Show Answer Correct Answer: B) Long-haul. 14. Air pollution causes all of the following, except A) Holes in the ozone layer. B) Increased particles in the air. C) Acid rain. D) Healthy air to breath. E) Smog. Show Answer Correct Answer: D) Healthy air to breath. 15. ..... helps in photosynthesis. A) Inert gas. B) Oxygen. C) Carbon dioxide. D) Nitrogen. Show Answer Correct Answer: C) Carbon dioxide. 16. Does Zuko's uncle have a son? A) No. B) Yes. C) All the above. D) None of the above. Show Answer Correct Answer: B) Yes. 17. As the air is warmed how does it density change? A) It increases (Sinks). B) It Remains the same. C) It decreases (Rises). D) None of the above. Show Answer Correct Answer: C) It decreases (Rises). 18. In which season, many flowers will bloom? A) Summer. B) Spring. C) Autumn. D) None of the above. Show Answer Correct Answer: B) Spring. 19. Air does many different things on ..... even though you can't see it. A) Earth. B) Mars. C) All the above. D) None of the above. Show Answer Correct Answer: A) Earth. 20. Do air planes have wings A) No. B) Yes. C) All the above. D) None of the above. Show Answer Correct Answer: A) No. 21. When was the first airplane made? A) 1923. B) 1903. C) 1905. D) 1908. Show Answer Correct Answer: B) 1903. 22. When does land breeze occur? A) Night time. B) Day time. C) All the above. D) None of the above. Show Answer Correct Answer: A) Night time. 23. The air is very thin in this layer of atmosphere. A) Exosphere. B) Troposphere. C) Stratosphere. D) Mesosphere. Show Answer Correct Answer: A) Exosphere. 24. Define air mass. A) 89. B) ?. C) A large region of air that has similar temperature and humidity. D) A cloud. Show Answer Correct Answer: C) A large region of air that has similar temperature and humidity. 25. Assuming normal atmospheric pressure atwhat temperature would R134a boil? A) -26.3 degrees C. B) -26.3 degrees Fahrenheit. C) -103.3 degrees C. D) -103.3 degrees Fahrenheit. Show Answer Correct Answer: A) -26.3 degrees C. ← 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