This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Geography > Air > Class 7 Geography Chapter 4 Air – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 8 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A device that is used to measure atmospheric pressure is a ..... A) Kilometer. B) Thermometer. C) Barometer. D) Micrometer. Show Answer Correct Answer: C) Barometer. 2. Warm air is ..... dense than cold air and rises creating convection currents. A) More. B) Less. C) All the above. D) None of the above. Show Answer Correct Answer: B) Less. 3. A continental polar air mass that overtakes a continental tropical creates this type of front. A) Stationary front. B) Occluded front. C) Cold front. D) Warm front. Show Answer Correct Answer: C) Cold front. 4. Fast-moving air is called ..... A) Storm. B) Breeze. C) Wind. D) Earthquakes. Show Answer Correct Answer: A) Storm. 5. How long time before the plane takes off should you be at the airport? A) Two hours. B) One hour. C) Three hours. D) 150 minutes. Show Answer Correct Answer: A) Two hours. 6. Air pressure is greatest when near Earth's surface because? A) The air molecules are closer together. B) The air molecules are farther apart. C) Air molecules are not tightly packed. D) Air molecules collide. Show Answer Correct Answer: A) The air molecules are closer together. 7. The weather data for Vineland shows the barometric pressure reading is rising. Which is the best forecast for the weather in the Vineland area? A) Sunny and dry. B) Stormy weather. C) Falling temperatures. D) No change at all. Show Answer Correct Answer: A) Sunny and dry. 8. Earthworms breathe through A) Skin. B) Gills. C) Lungs. D) All of the above. Show Answer Correct Answer: A) Skin. 9. Oxygen supports combustion. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. Warm air mass that does not carry water: A) Continental tropical. B) Maritime polar. C) Maritime tropical. D) Continental polar. Show Answer Correct Answer: A) Continental tropical. 11. When air masses collide or interact with one another, what formation always occurs? A) Extreme weather occurs. B) Fronts are formed. C) Thunderstorms form. D) High amounts of wind. Show Answer Correct Answer: B) Fronts are formed. 12. Which two primary pollutants most often result in acid rain? A) Sulfuric dioxide and nitric oxide. B) Carbon monoxide and VOCs. C) ZEVs and VOCs. D) Carbonic acid and citric acid. Show Answer Correct Answer: A) Sulfuric dioxide and nitric oxide. 13. Neha presses the tip of a medicinal dropper and inserts it in the medicine bottle and then releases the tip of the dropper. She sees medicine rise up inside the tube of the dropper. Choose the correct reason for this. A) Air occupies space. B) Air helps in burning. C) Air exerts pressure. D) Air has mass. Show Answer Correct Answer: C) Air exerts pressure. 14. A gentle wind is called A) Wind. B) Breeze. C) Storm. D) Sandstorm. Show Answer Correct Answer: B) Breeze. 15. How can smog be dangerous? A) It blocks the sun. B) It causes skin damage. C) People can't breath well. D) It smells bad. Show Answer Correct Answer: C) People can't breath well. 16. Storms are very helpful to plants and animals. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 17. The weather forecast tells about A) The weather yesterday. B) The weather tomorrow. C) All the above. D) None of the above. Show Answer Correct Answer: B) The weather tomorrow. 18. Carbon monoxide (CO) is harmful to man because: A) It forms carbolic acid. B) It generates excess CO2. C) It competes with O2 for haemoglobin. D) It is carcinogenic. Show Answer Correct Answer: C) It competes with O2 for haemoglobin. 19. Cold air traveling south from Canada is: A) Continental polar. B) Maritime tropical. C) Maritime polar. D) Continental tropical. Show Answer Correct Answer: A) Continental polar. 20. What is very hot wind called? A) Cool breeze. B) Monsoon air. C) To. D) Trade wind. Show Answer Correct Answer: C) To. 21. Air Force One can be refueled in midair. A) Yes. B) No!. C) Hmmmm Not sure. D) None of the above. Show Answer Correct Answer: A) Yes. 22. What is not a form of precipitation? A) Cats. B) Snow. C) Ice. D) Rain. Show Answer Correct Answer: A) Cats. 23. What are the characteristics of cold fronts? A) Rapid drop in temperature, strong winds, heavy precipitation, thunderstorms, and sometimes severe weather. B) Light breeze and drizzle. C) No change in temperature. D) Sunny and clear weather. Show Answer Correct Answer: A) Rapid drop in temperature, strong winds, heavy precipitation, thunderstorms, and sometimes severe weather. 24. Plants use ..... gas while preparing their food. A) Nitrogen. B) Carbon dioxide. C) All the above. D) None of the above. Show Answer Correct Answer: B) Carbon dioxide. 25. What is the innermost layer of the Atmosphere? A) Thermosphere. B) Stratosphere. C) Troposphere. D) Mesosphere. Show Answer Correct Answer: C) Troposphere. 26. During photosynthesis, what gas do the plant take in? A) Carbon dioxide. B) Nitrogen. C) Hydrogen. D) Oxygen. Show Answer Correct Answer: A) Carbon dioxide. 27. A pressure ..... measures the amount of air pressure in an air tank. A) Directions. B) Gauge. C) Pumps. D) Force. Show Answer Correct Answer: B) Gauge. 28. What causes the balloon to sink toward the ground? A) The pilot stops the fire and falls. B) The pilot does nothing and waits for the wind to change. C) The pilot holds his breath and hopes it goes well. D) The pilot pulls a cord. Show Answer Correct Answer: D) The pilot pulls a cord. 29. An air pollutant, which exists in solid form, is ..... A) Sulphur. B) Smoke. C) Ozone. D) Helium. Show Answer Correct Answer: B) Smoke. 30. An electronic display showing flight times and if the flight is on time, boarding, closed or delayed. A) Customs. B) Departures board. C) Gate. D) Security. Show Answer Correct Answer: B) Departures board. 31. Green House Effect is caused by A) Carbon dioxide. B) Nitrogen. C) Oxygen. D) Ozone. Show Answer Correct Answer: A) Carbon dioxide. 32. In orographic rainfall the side which receives maximum rainfall is known as A) Rainward side. B) Leeward side. C) Seaward side. D) Windward side. Show Answer Correct Answer: D) Windward side. 33. A tired and unpleasant feeling that you sometimes get when you travel by airplane to a place that is far away. A) Long-haul flight. B) Jet lay. C) Jet luggage. D) Turbulence. Show Answer Correct Answer: B) Jet lay. 34. What do they do with your luggage at the check-in desk? They ..... A) X-ray it. B) Check it. C) Open it. D) Weigh it. Show Answer Correct Answer: D) Weigh it. 35. Air is always clean A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 36. Plants need ..... gas for breathing A) Nitrogen. B) Sulphur. C) Oxygen. D) Carbon dioxide. Show Answer Correct Answer: C) Oxygen. 37. In solids molecules are packed A) Tightly. B) Loosely. C) Very loosely. D) None of the above. Show Answer Correct Answer: A) Tightly. 38. The air contains 21% of A) Nitrogen. B) Carbon Dioxide. C) Water Vapour. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 39. Air Pollution Contributes to the Spread of COVID-19 A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 40. Hot air (RISES / FALLS) ..... A) RISES. B) FALLS. C) All the above. D) None of the above. Show Answer Correct Answer: A) RISES. 41. A/An ..... is a large body of air that has the same properties as the Earth's surface over which it develops. A) Cloud. B) Front. C) Tornado. D) Air mass. Show Answer Correct Answer: D) Air mass. 42. The faster air moves, the lower the ..... A) Pressure. B) Speed. C) Compression. D) Density. Show Answer Correct Answer: A) Pressure. 43. Which type of air in the atmosphere traps the heat radiation? A) Ozone. B) Carbon dioxide. C) Oxygen. D) Nitrogen. Show Answer Correct Answer: B) Carbon dioxide. 44. Which geographic region is the most common source region for the mT air masses that move into New York State? A) Arctic Ocean. B) Gulf of Mexico. C) Southwestern United States. D) Northern Canada. Show Answer Correct Answer: B) Gulf of Mexico. 45. Which best describes the type of weather associated with low air pressure? A) Clear and dry. B) Sunny and cold. C) Sunny with high winds. D) Cloudy with precipitation. Show Answer Correct Answer: D) Cloudy with precipitation. 46. The body of the plane is called the A) Flaps. B) Fuselage. C) Landing gear. D) None of the above. Show Answer Correct Answer: B) Fuselage. 47. What kind of matter fills a balloon? A) Solid. B) Liquid. C) Gas. D) None of the above. Show Answer Correct Answer: C) Gas. 48. Gases present in air are given below, arrange them in the decreasing order of their concentration A) Nitrogen, Carbon dioxide, Oxygen. B) Oxygen, Nitrogen, Carbon dioxide. C) Nitrogen, Oxygen, Carbon dioxide. D) Oxygen, Carbon dioxide, Nitrogen. Show Answer Correct Answer: C) Nitrogen, Oxygen, Carbon dioxide. 49. Impurities that do not dissolve in water are called ..... A) Soluble Impurities. B) Insoluble Impurities. C) Germs. D) None of the above. Show Answer Correct Answer: B) Insoluble Impurities. 50. What are the pollutants known to cause acid rain? A) Nitrogen oxides and sulfur dioxide (sulfur compounds). B) Low pH and Acid. C) Lemon Juice and Battery Acid. D) Particulate Matter and Carbon Dioxide. Show Answer Correct Answer: A) Nitrogen oxides and sulfur dioxide (sulfur compounds). 51. Air pressure 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. 52. The effective temperature increases with a decrease in relative humidity at the same DBT. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 53. Which gas is the main contributor to the problem of global warming? A) CFCs. B) Carbon dioxide. C) Carbon monoxide. D) Ozone. Show Answer Correct Answer: B) Carbon dioxide. 54. I ..... online the day before I was going to fly. A) Checked in. B) Got on. C) Picked up. D) Filled out. Show Answer Correct Answer: A) Checked in. 55. Why air is important? A) For breathing. B) For burning. C) All of these. D) Non. Show Answer Correct Answer: B) For burning. 56. Which air pollutant is a toxic, colorless and odorless gas that is dangerous to breath in? A) Carbon monoxide. B) Carbon dioxide. C) Methane. D) Sulphur dioxide. Show Answer Correct Answer: A) Carbon monoxide. 57. A body of air that has the same level of temperature and humidity. A) Occluded front. B) Air Mass. C) Front. D) Maritime polar. Show Answer Correct Answer: B) Air Mass. 58. ..... is all around us. A) Air. B) Wind. C) Fire. D) None of the above. Show Answer Correct Answer: A) Air. 59. The weight of air on a unit area of the earth is called as ..... A) Pressure Gradient. B) Air Pressure/Atmospheric Pressure. C) All the above. D) None of the above. Show Answer Correct Answer: B) Air Pressure/Atmospheric Pressure. 60. Which expression means that your plane will take off later than planned? A) It is delayed. B) It is canceled. C) It is lately. D) It is late. Show Answer Correct Answer: A) It is delayed. ← PreviousNext →Related QuizzesGeography QuizzesClass 7 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books