This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 14 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Who helps to keep the air clean? A) Birds. B) Trees. C) None of them. D) None of the above. Show Answer Correct Answer: B) Trees. 2. Which kind of weather change will occur with an increase in air pressure? A) Cooler and dryer. B) Colder and rainier. C) Hotter and stormier. D) Warmer and moister. Show Answer Correct Answer: A) Cooler and dryer. 3. What does a TXV do? A) Cleans, dries and filters the refrigerant. B) It controls the quantity ofrefrigerant entering the evaporator. C) Allows for an increase in pressure andtemperature prior to entering the condenser. D) It acts as a safety device if thecompressor is over pressuring the system. Show Answer Correct Answer: B) It controls the quantity ofrefrigerant entering the evaporator. 4. The ..... changes the water in the rivers into water vapour. A) Sun. B) Moon. C) Stars. D) All of the above. Show Answer Correct Answer: A) Sun. 5. If an air mass forms above land, it will be A) Wet. B) Dry. C) Cold. D) Hot. Show Answer Correct Answer: B) Dry. 6. Air helps move things. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 7. Where can you leave your luggage at the station if you do not want to carry it with you all day? At ..... A) Luggage store. B) Left luggage. C) Leave-and-go. D) Bag room. Show Answer Correct Answer: B) Left luggage. 8. Cool air molecules move ..... A) Quickly. B) Slowly. C) All the above. D) None of the above. Show Answer Correct Answer: B) Slowly. 9. Helium is used in- A) Observatory balloons. B) In filament bulbs. C) Advertisement. D) None of the above. Show Answer Correct Answer: A) Observatory balloons. 10. What are some causes of air pollution? A) Industries. B) Automobiles. C) Mist and smoke. D) All of the above. Show Answer Correct Answer: D) All of the above. 11. Eliminates the need for individual agreements, saving time and efforts A) MPM. B) TPM. C) HIP. D) BSP. Show Answer Correct Answer: D) BSP. 12. Which is the best description of the purpose of a lubricant? A) Reduces the amount of friction and increases the amount of thrust. B) Reduces the amount of friction and increases useful energy transfer. C) Reduces wasteful energy transfer and increases the amount of thrust. D) None of the above. Show Answer Correct Answer: B) Reduces the amount of friction and increases useful energy transfer. 13. Where does respiration happen in the cell? A) Ribosomes. B) Cell membrane. C) Mitochondria. D) Nucleus. Show Answer Correct Answer: C) Mitochondria. 14. NUC multiply by IROE is A) AC. B) LCF. C) HIP. D) BHC. Show Answer Correct Answer: B) LCF. 15. Acid rain can be traced back to A) The burning of fossil fuels. B) The use of electrostatic precipitators. C) Thermal inversions. D) The release of particulate matter into the atmosphere. Show Answer Correct Answer: A) The burning of fossil fuels. 16. There is ..... even in an empty container. A) Water. B) Air. C) Light. D) None of the above. Show Answer Correct Answer: B) Air. 17. Three-fourth of the Earth's surface is covered with water. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. Density of air is greater ..... A) At the top of the mountain. B) At the bottom of the mountain. C) At the center of the mountain. D) None of the above. Show Answer Correct Answer: B) At the bottom of the mountain. 19. I am an air mass that forms over an ocean near the equator. A) Maritime tropical. B) Maritime polar. C) Continental tropical. D) Continental polar. Show Answer Correct Answer: A) Maritime tropical. 20. Noise pollution can cause A) High blood pressure. B) Loss of sleep. C) Hearing loss. D) All of the above. Show Answer Correct Answer: D) All of the above. 21. How does air pollution impact weather patterns? A) Air pollution has no impact on weather patterns. B) Air pollution leads to more predictable weather patterns. C) Air pollution can lead to changes in precipitation and temperature. D) Air pollution only affects air quality, not weather patterns. Show Answer Correct Answer: C) Air pollution can lead to changes in precipitation and temperature. 22. Which of the following causes of pollution? A) Car and vehicle emissions. B) Smog. C) Acid rain. D) Animals and plants dying. Show Answer Correct Answer: A) Car and vehicle emissions. 23. The ..... is the vertical part of the tail. A) Fin. B) Tail. C) Rudder. D) None of the above. Show Answer Correct Answer: A) Fin. 24. What type of air mass is warm, forms in the tropics, and has low air pressure? A) Tropical. B) Polar. C) Maritime. D) Continental. Show Answer Correct Answer: A) Tropical. 25. Select the state of the water in the clouds. A) Solid. B) Liquid. C) Gas. D) Plasma. Show Answer Correct Answer: B) Liquid. ← 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