This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 9 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The branch of science concerned with the process and phenomena of the atmosphere, especially as a means of forecasting the weather is A) Air science. B) Neurology. C) Meteorology. D) Astrology. Show Answer Correct Answer: C) Meteorology. 2. Why air is considered a mixture? A) Each gas has no color, so cannot be differentiate. B) Each gas still shows its original properties when separated. C) All the above. D) None of the above. Show Answer Correct Answer: B) Each gas still shows its original properties when separated. 3. Nitrogen is an active component. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 4. Does air pollution cause tears in the ozone layer? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 5. My flight from Australia will ..... in KLIA at 3pm. A) Cross. B) Fly. C) Check. D) Land. Show Answer Correct Answer: D) Land. 6. What are different ways people would fly? A) Balloons and airplanes. B) Balloons, airships, and airplanes. C) Kites and balloons. D) Airships and silk flags. Show Answer Correct Answer: B) Balloons, airships, and airplanes. 7. What is the measurement of the longest layer of the atmosphere? A) 25 km. B) 60 km. C) 705 km. D) 605 km. Show Answer Correct Answer: D) 605 km. 8. When a person is caught with a fire, he is wrapped in a thick blanket so as to A) Cut off the Oxygen supply. B) Cut off the Nitrogen supply. C) Keep the body cool. D) All the above. Show Answer Correct Answer: A) Cut off the Oxygen supply. 9. Crocodiles breathe through A) Lungs. B) Gills. C) Spiracles. D) None of the above. Show Answer Correct Answer: A) Lungs. 10. Which type of fire extinguisher should be used on a fire involving flammable liquids such as grease or oil? A) Water. B) Carbon Dioxide. C) Dry Chemical. D) Foam. Show Answer Correct Answer: B) Carbon Dioxide. 11. Sucking a drink through a straw ..... where is there more pressure? A) Going out of the straw. B) Going inside of the straw. C) Equal pressure. D) None of the above. Show Answer Correct Answer: A) Going out of the straw. 12. Air travels A) From high pressure to low pressure. B) From low pressure to high pressue. C) All the above. D) None of the above. Show Answer Correct Answer: A) From high pressure to low pressure. 13. Rue or False:Air resistance is a type of friction. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. Which pair below are the two main sources of air pollution in urban (populated) areas? A) Vehicles, volcanoes. B) Vehicles, industries. C) Industries, agriculture. D) All of the above. Show Answer Correct Answer: B) Vehicles, industries. 15. What is air pollution is contamination A) Air. B) Water. C) Land. D) Plants. Show Answer Correct Answer: A) Air. 16. The air occupies space but has no shape A) TRUE. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 17. Falling air pressure usually indicates a storm is approaching A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. The ..... protects people from the effects of too much ultraviolet radiation. A) Ozone layer. B) Smog layer. C) Cloud cover. D) Temperature inversion. Show Answer Correct Answer: A) Ozone layer. 19. Ground-level ozone in most major United States cities results primarily from A) Motor-vehicle exhaust. B) Producing electric power. C) Burning coal. D) Burning fuel for cooking. Show Answer Correct Answer: A) Motor-vehicle exhaust. 20. Which event propelled the United States into World War II? A) The bombing of Pearl Harbor. B) The bombing of Hiroshima. C) Hitler's invasion of Poland. D) The discovery of German spies in America. Show Answer Correct Answer: A) The bombing of Pearl Harbor. 21. Precipitation that comes down to the earth in liquid form is called A) Water. B) Water droplets. C) Hail. D) Rain. Show Answer Correct Answer: D) Rain. 22. Rust is called ..... A) Hydrated ferric oxide. B) Ferrous oxide. C) Ferrous nitrate. D) Magnesium sulphate. Show Answer Correct Answer: A) Hydrated ferric oxide. 23. There is a covering of air all around the ..... A) India. B) Earth. C) All the above. D) None of the above. Show Answer Correct Answer: B) Earth. 24. Which is the layer of atmosphere that extends from 500 km to outer space? A) Ionosphere. B) Exosphere. C) Stratosphere. D) Mesosphere. Show Answer Correct Answer: B) Exosphere. 25. Air has mass and ..... A) Occupies space. B) Do not occupies space. C) All the above. D) None of the above. Show Answer Correct Answer: A) Occupies space. ← 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 10Class 7 Geography Chapter 4 Air Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books