This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 3 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is not a meteorological factor? A) Pressure. B) Atmospheric Stability. C) Temperature. D) Visibility. Show Answer Correct Answer: A) Pressure. 2. We can feel air when it ..... A) Moves. B) Blows. C) Flies. D) None of the above. Show Answer Correct Answer: B) Blows. 3. Which of the following is NOT a cause of air pollution? A) Smoke from factories. B) Exhaust from cars and trucks. C) Forest fires. D) Difficulty breathing. Show Answer Correct Answer: D) Difficulty breathing. 4. To show the presence of oxygen and nitrogen in air, take a test tube ..... long and fix along its side a ..... long strip graph paper A) 5cm, 8cm. B) 7cm, 3cm. C) 8cm, 5cm. D) None of these. Show Answer Correct Answer: C) 8cm, 5cm. 5. How many episode does avatar the last air bender have? A) 101. B) 81. C) 61. D) 71. Show Answer Correct Answer: C) 61. 6. Which of the following is true about the Clean Air Act Amendments of 1990? A) They allowed power plants to buy and sell SO2 pollution allowances. B) They decreased the CAFE (corporate average fuel economy) standards for light trucks from 29 mpg to 12 mpg. C) They increased the allowable level of tropospheric ozone from 80 ppb to 100 ppb. D) They regulated the emission of CO$_{2}$ by power plants. Show Answer Correct Answer: A) They allowed power plants to buy and sell SO2 pollution allowances. 7. How do we characterize an air mass that forms over land? A) Dry. B) Wet. C) Cold. D) Warm. Show Answer Correct Answer: A) Dry. 8. What do you call a very strong wind? A) Wind. B) Storm. C) Breeze. D) None of the above. Show Answer Correct Answer: C) Breeze. 9. Which of component present in air indicates air pollution? A) 0.03% carbon dioxide. B) Oxygen. C) Nitrogen. D) Sulphur dioxide, carbon monoxide and larger percentage of carbon dioxide. Show Answer Correct Answer: D) Sulphur dioxide, carbon monoxide and larger percentage of carbon dioxide. 10. The method of changing a liquid into its vapours form and then condensing the vapours to get the pure from of that liquid is called. A) Condensation. B) Evaporation. C) Distillation. D) Sedimentation. Show Answer Correct Answer: C) Distillation. 11. The amount of insolation ..... A) Increases from equator to poles. B) Decreases from the equator towards the poles. C) Decreases from poles to equator. D) None of the above. Show Answer Correct Answer: B) Decreases from the equator towards the poles. 12. Which air mass is normally associated with the formation of hurricanes? A) Maritime tropical. B) Maritime polar. C) Continental polar. D) Continental tropical. Show Answer Correct Answer: A) Maritime tropical. 13. Water has no smell, no color, no ..... A) Weight. B) Taste. C) Liquid. D) None of the above. Show Answer Correct Answer: B) Taste. 14. Air works best when it has air ..... behind it. A) Force. B) Pumps. C) Pressure. D) Directions. Show Answer Correct Answer: C) Pressure. 15. Air Pollution is not destroying the ozone layer in the atmosphere. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 16. Self-cleansing properties of the temperature, clean and remove the air pollutants in the atmosphere, under various A) Artificial process. B) Man made process. C) Natural process. D) Chemical process. Show Answer Correct Answer: C) Natural process. 17. True/False? As air pressure decreases, so does air density. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. An air pollution prevention mechanism found in vehicles. A) Combustion chamber. B) Electrostatic precipitator. C) Scrubber. D) Catalytic converter. Show Answer Correct Answer: D) Catalytic converter. 19. How does fire help the balloon fly? A) Fire puts off gas that is cool enough to make it leave the ground. B) Fire heats the air. Since hot air is lighter than cold air, the balloon rises. C) Fire doesn't help the balloon fly. D) The balloon catches on fire and lifts it off the ground. Show Answer Correct Answer: B) Fire heats the air. Since hot air is lighter than cold air, the balloon rises. 20. Which gas in the air is needed for fires to burn? A) Oxygen. B) Nitrogen. C) Carbon dioxide. D) Helium. Show Answer Correct Answer: A) Oxygen. 21. If the molecules in a substance are arranged in a tight, patterned kind of way, the matter must be in which state? A) Liquid. B) Gas. C) Evaporation. D) Solid. Show Answer Correct Answer: D) Solid. 22. GIVING OUT OF AIR IS CALLED A) INHALATION. B) BREATHING. C) EXHALATION. D) ALL OF THESE. Show Answer Correct Answer: C) EXHALATION. 23. Using buses, trains, or riding together reduces the number of ..... used. A) Cars. B) Smokestacks. C) Houses. D) None of the above. Show Answer Correct Answer: A) Cars. 24. Pressure is the effect of A) The weight of all the air above pressing down. B) Water vapor in the atmosphere. C) Greenhouse gases. D) Solar radiation. Show Answer Correct Answer: A) The weight of all the air above pressing down. 25. What does stationary mean? A) Not moving. B) Moving fast. C) Polar. D) Tropical. Show Answer Correct Answer: A) Not moving. ← PreviousNext →Related QuizzesClass 7 Geography Chapter 4 Air Quiz 1Class 7 Geography Chapter 4 Air Quiz 2Class 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 10Class 7 Geography Chapter 4 Air Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books