This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Sometimes air becomes dirty because of A) Smoke. B) Water. C) Wind. D) None of the above. Show Answer Correct Answer: A) Smoke. 2. When you arrive at the airport, you go to ..... to get your boarding pass. A) Customs. B) Check-in desk. C) Passport control. D) Security check. Show Answer Correct Answer: B) Check-in desk. 3. Take a pea sized shape Phosphorus and over it fix a ..... A) Wood plug. B) Cork of a Bottle. C) Cotton wool plug. D) Silk Plug. Show Answer Correct Answer: C) Cotton wool plug. 4. Which of the following is present in large amount in the air? A) Water vapour. B) Carbon dioxide. C) Nitrogen. D) Dust. Show Answer Correct Answer: C) Nitrogen. 5. How much percent of people are breathing polluted air every day A) 90. B) 67. C) 84. D) 91. Show Answer Correct Answer: D) 91. 6. The air pressure at the equatorial region is A) Low. B) High. C) Moderate. D) Unstable. Show Answer Correct Answer: A) Low. 7. If two air filled balloons are placed in the corner of the stick, one is pricked, Which of the statement is correct? A) Pricked one side goes up and filled balloon side comes down. B) Air has weight. C) Boith the above statements are correct. D) Air doenot take space. Show Answer Correct Answer: C) Boith the above statements are correct. 8. About how many pilots graduated from the Tuskegee program? A) 10. B) 100. C) 1, 000. D) 10, 000. Show Answer Correct Answer: C) 1, 000. 9. Tick the correct option[s] A) Air has weight. B) Air cannot lift things. C) Air is never useful. D) Air cannot move things. E) Air helps in burning. Show Answer Correct Answer: A) Air has weight. 10. Which pair of the following is correct? A) Sailboat-filled with air. B) Football-dries our clothes. C) Soft wind-breeze. D) None of the above. Show Answer Correct Answer: C) Soft wind-breeze. 11. Greenhouse gases, in moderate amounts, keep the Earth's temperature stable A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. Describe the movement of cold fronts. A) Cold fronts move in the opposite direction of the warm air they are replacing. B) Cold fronts move in a circular motion around the warm air. C) Cold fronts move in the direction of the warm air they are replacing. D) Cold fronts move vertically up into the atmosphere. Show Answer Correct Answer: C) Cold fronts move in the direction of the warm air they are replacing. 13. What are the daily conditions of temperature, humidity and precipitation? A) Weather. B) Climate. C) All the above. D) None of the above. Show Answer Correct Answer: A) Weather. 14. Small amount of water present in the air is called ..... A) Water vapour. B) Snow. C) Oxygen. D) Carbon dioxide. Show Answer Correct Answer: A) Water vapour. 15. What is the method used to remove salt from water? A) Filtration. B) Sedimentation. C) Decantation. D) Evaporation. Show Answer Correct Answer: D) Evaporation. 16. What solution do you consider for air improvement? A) Recycle. B) Don't throw trash on the streets. C) Using renewable energy. D) None of the above. Show Answer Correct Answer: C) Using renewable energy. 17. An air mass entering Alaska from the northern Pacific Ocean would most likely be labeled on a weather map as A) CT. B) CP. C) MT. D) MP. Show Answer Correct Answer: D) MP. 18. Insects breathe through A) Gills. B) Spiracles. C) Lungs. D) None of the above. Show Answer Correct Answer: B) Spiracles. 19. Air does not occupy space. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 20. What are the measures to control air pollution? A) Use of public transport. B) Planting more trees. C) Reducing industrial emissions. D) All of the above. Show Answer Correct Answer: D) All of the above. 21. The local weather forecaster says a low-pressure system will enter North Carolina. Which type of weather will the low-pressure system most likely bring? A) Cool, dry air. B) Storms and high winds. C) Low temperatures and sunny skies. D) High temperatures and sunny skies. Show Answer Correct Answer: B) Storms and high winds. 22. Warm air near the Earth's surface rises and then cools and drops, this creates a ..... in the atmosphere. A) Run-off. B) Greenhouse Effect. C) Convection current. D) Water cylce. Show Answer Correct Answer: C) Convection current. 23. Air is a ..... of several of gases. A) Solution. B) Mixture. C) All the above. D) None of the above. Show Answer Correct Answer: B) Mixture. 24. What Causes differences in air pressure around earth? A) Warm air rises at the equator, and cold air sinks at the poles. B) Equator gets over heated. C) Snow. D) None of the above. Show Answer Correct Answer: A) Warm air rises at the equator, and cold air sinks at the poles. 25. What type of air mass is warm, humid, and forms over oceans? A) Maritime Tropical. B) Maritime Polar. C) Continental Tropical. D) Continental Polar. Show Answer Correct Answer: A) Maritime Tropical. ← 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 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