This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Air contains ..... A) Water vapour. B) Dust. C) Germs. D) Smoke. E) All of the above. Show Answer Correct Answer: E) All of the above. 2. Which of the following are effects of burning fossil fuels and car emissions? A) Smog. B) Acid Rain. C) Global Climate Change. D) All of the Above. Show Answer Correct Answer: D) All of the Above. 3. ..... percentage of the earth's surface is covered in water. A) 80%. B) 70%. C) 75%. D) 65%. Show Answer Correct Answer: B) 70%. 4. The controlling surface that regulates an aircraft's roll. A) Aileron. B) Rudder. C) Wing. D) Flaps. Show Answer Correct Answer: A) Aileron. 5. What are the effects of air pollution? A) Sand storms. B) Acid rain. C) Thinning of ozone layer. D) None of the above. Show Answer Correct Answer: C) Thinning of ozone layer. 6. Baggage allowance means ..... A) The things you can get on the plane. B) The things you have to show to security. C) The suitcases and bags you can carry. D) None of the above. Show Answer Correct Answer: C) The suitcases and bags you can carry. 7. % of argon is A) 0.93%. B) 0.093%. C) 93.0%. D) 0.9%. Show Answer Correct Answer: A) 0.93%. 8. At the poles, air is usually ..... A) Rising. B) Sinking. C) All the above. D) None of the above. Show Answer Correct Answer: B) Sinking. 9. Which is most associated with a thunderstorm? A) Low air pressure. B) High air pressure. C) Winds blowing from the West. D) Winds blowing from the East. Show Answer Correct Answer: A) Low air pressure. 10. The method of changing a liquid into its vapours and then condensing the vapours to get the pure form of that liquid is called ..... A) Condensation. B) Distillation. C) Evaporation. D) Boiling. Show Answer Correct Answer: B) Distillation. 11. Plants use ..... for making their food. A) Carbondioxide. B) Carbonmono oxide. C) Carbon. D) None of the above. Show Answer Correct Answer: A) Carbondioxide. 12. Moisture in the air at any time, is known as A) Humidity. B) Snow. C) Water Vapour. D) Precipitation. Show Answer Correct Answer: A) Humidity. 13. Which of the following is NOT a source of water pollution? A) Discharge of untreated industrial waste. B) Oil spills. C) Sewage. D) Usage of plastic straws. Show Answer Correct Answer: D) Usage of plastic straws. 14. AIR EXPANDS ON ..... A) HEATING. B) COOLING. C) DRYING. D) BLOWING. Show Answer Correct Answer: A) HEATING. 15. Can we see or touch air? A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 16. Plants take in carbon dioxide to make their food and release ..... A) Nitrogen. B) Sulphur. C) Oxygen. D) None of the above. Show Answer Correct Answer: C) Oxygen. 17. What is a secondary pollutant? A) Pollutant that is put directly into air by human activities. B) Pollutants that react with other primary pollutants. C) All the above. D) None of the above. Show Answer Correct Answer: B) Pollutants that react with other primary pollutants. 18. What is altitude? A) How much something weighs. B) The distance above sea level. C) How big something is. D) How far away something is. Show Answer Correct Answer: B) The distance above sea level. 19. The water in the straw goes down because the particles are compressed. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 20. Which of these greenhouse gases is most strongly associated with cattle (cow) production? A) Water vapor. B) Carbon dioxide. C) Methane. D) Chlorofluorocarbons. Show Answer Correct Answer: C) Methane. 21. Air is needed for ..... A) Coloring. B) Burning. C) Writing. D) None of the above. Show Answer Correct Answer: B) Burning. 22. When air is being pressed it presses back, this is called air ..... A) Gauge. B) Force. C) Pop. D) Pressure. Show Answer Correct Answer: D) Pressure. 23. What is the effect that carbon dioxide causes on the earth? A) Global warming. B) Greenhouse effect. C) Breathing problems. D) Helps plants in PhotosynthesisTagsair. Show Answer Correct Answer: B) Greenhouse effect. 24. Which of these ideas is reinforced throughout the selection? A) The president's duties have not changed over the years. B) Presidential advisers have the opportunity to work closely with the president. C) The president's duties do not cease when he travels. D) It takes the president more time to get work done while traveling than at home. Show Answer Correct Answer: C) The president's duties do not cease when he travels. 25. Can insoluble impurities be removed by sedimantation? A) YES. B) NO. C) All the above. D) None of the above. Show Answer Correct Answer: A) YES. ← 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 8Class 7 Geography Chapter 4 Air Quiz 9Class 7 Geography Chapter 4 Air Quiz 10Class 7 Geography Chapter 4 Air Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books