This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Geography > Air > Class 7 Geography Chapter 4 Air – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is an essential nutrient for plants? A) Phosphorous. B) Nitrogen. C) Hydrogen. D) Calcium. Show Answer Correct Answer: B) Nitrogen. 2. Air spreads out in all ..... taking the shape of its container. A) Directions. B) Compressed. C) Earth. D) Space. Show Answer Correct Answer: A) Directions. 3. Which among the following is not a type of wind? A) Local Winds. B) Tropical Winds. C) Seasonal Winds. D) Permanent Winds. Show Answer Correct Answer: B) Tropical Winds. 4. Sometimes air becomes dirty because of A) Smoke. B) Water. C) Wind. D) None of the above. Show Answer Correct Answer: A) Smoke. 5. When you arrive at the airport, you go to ..... to get your boarding pass. A) Passport control. B) Security check. C) Check-in desk. D) Customs. Show Answer Correct Answer: C) Check-in desk. 6. Take a pea sized shape Phosphorus and over it fix a ..... A) Wood plug. B) Silk Plug. C) Cotton wool plug. D) Cork of a Bottle. Show Answer Correct Answer: C) Cotton wool plug. 7. Which of the following is present in large amount in the air? A) Water vapour. B) Dust. C) Carbon dioxide. D) Nitrogen. Show Answer Correct Answer: D) Nitrogen. 8. How much percent of people are breathing polluted air every day A) 67. B) 84. C) 91. D) 90. Show Answer Correct Answer: C) 91. 9. The air pressure at the equatorial region is A) Moderate. B) Low. C) High. D) Unstable. Show Answer Correct Answer: B) Low. 10. 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. 11. About how many pilots graduated from the Tuskegee program? A) 1, 000. B) 100. C) 10. D) 10, 000. Show Answer Correct Answer: A) 1, 000. 12. Tick the correct option[s] A) Air cannot lift things. B) Air helps in burning. C) Air cannot move things. D) Air has weight. E) Air is never useful. Show Answer Correct Answer: D) Air has weight. 13. 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. 14. 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. 15. 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. 16. As we go up to the layers of atmosphere, the pressure A) Increases. B) Decreases. C) Remains the same. D) None of the above. Show Answer Correct Answer: B) Decreases. 17. 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. 18. Small amount of water present in the air is called ..... A) Snow. B) Oxygen. C) Water vapour. D) Carbon dioxide. Show Answer Correct Answer: C) Water vapour. 19. What is the method used to remove salt from water? A) Decantation. B) Sedimentation. C) Evaporation. D) Filtration. Show Answer Correct Answer: C) Evaporation. 20. 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. 21. 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. 22. Insects breathe through A) Gills. B) Spiracles. C) Lungs. D) None of the above. Show Answer Correct Answer: B) Spiracles. 23. Air does not occupy space. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. 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. 25. 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. 26. Warm air near the Earth's surface rises and then cools and drops, this creates a ..... in the atmosphere. A) Water cylce. B) Greenhouse Effect. C) Run-off. D) Convection current. Show Answer Correct Answer: D) Convection current. 27. 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. 28. What type of air mass is warm, humid, and forms over oceans? A) Continental Tropical. B) Continental Polar. C) Maritime Tropical. D) Maritime Polar. Show Answer Correct Answer: C) Maritime Tropical. 29. 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. 30. 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. 31. The controlling surface that regulates an aircraft's roll. A) Wing. B) Rudder. C) Aileron. D) Flaps. Show Answer Correct Answer: C) Aileron. 32. 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. 33. 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. 34. 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. 35. Which is most associated with a thunderstorm? A) High air pressure. B) Winds blowing from the West. C) Winds blowing from the East. D) Low air pressure. Show Answer Correct Answer: D) Low air pressure. 36. 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) Boiling. C) Distillation. D) Evaporation. Show Answer Correct Answer: C) Distillation. 37. Plants use ..... for making their food. A) Carbondioxide. B) Carbonmono oxide. C) Carbon. D) None of the above. Show Answer Correct Answer: A) Carbondioxide. 38. Moisture in the air at any time, is known as A) Snow. B) Precipitation. C) Water Vapour. D) Humidity. Show Answer Correct Answer: D) Humidity. 39. Which of the following is NOT a source of water pollution? A) Usage of plastic straws. B) Discharge of untreated industrial waste. C) Sewage. D) Oil spills. Show Answer Correct Answer: A) Usage of plastic straws. 40. AIR EXPANDS ON ..... A) COOLING. B) HEATING. C) DRYING. D) BLOWING. Show Answer Correct Answer: B) HEATING. 41. 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. 42. 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. 43. 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. 44. 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. 45. 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. 46. Which of these greenhouse gases is most strongly associated with cattle (cow) production? A) Methane. B) Chlorofluorocarbons. C) Water vapor. D) Carbon dioxide. Show Answer Correct Answer: A) Methane. 47. Air is needed for ..... A) Coloring. B) Burning. C) Writing. D) None of the above. Show Answer Correct Answer: B) Burning. 48. When air is being pressed it presses back, this is called air ..... A) Pressure. B) Gauge. C) Force. D) Pop. Show Answer Correct Answer: A) Pressure. 49. What is the effect that carbon dioxide causes on the earth? A) Global warming. B) Greenhouse effect. C) Helps plants in PhotosynthesisTagsair. D) Breathing problems. Show Answer Correct Answer: B) Greenhouse effect. 50. 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. 51. The instrument used to measure temperature is called: A) Barometer. B) Pressure. C) Thermometer. D) Anemometer. Show Answer Correct Answer: C) Thermometer. 52. 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. 53. Which of the following correctly pairs a greenhouse gas with its primary anthropogenic source? A) Carbon dioxide and municipal solid waste from homes. B) Chlorofluorocarbons and fossil fuel combustion. C) Nitrous oxide and agricultural practices. D) Methane and vehicular emissions. Show Answer Correct Answer: C) Nitrous oxide and agricultural practices. 54. Select the natural form of air pollution. A) CFC's. B) Burning Fossil Fuels. C) Forest Fires. D) Paints and Solvents. Show Answer Correct Answer: C) Forest Fires. 55. Which gas layer in the air protects the animals and plants from the harmful effects of ultraviolet rays present in sunlight. A) Carbon dioxide. B) Sulphur oxide. C) Ozone. D) Helium. Show Answer Correct Answer: C) Ozone. 56. What is the value of optimum effective temperature in winter? A) 17. B) 18. C) 20. D) 19. Show Answer Correct Answer: D) 19. 57. In the United States weather usually moves from A) West to east. B) East to west. C) All the above. D) None of the above. Show Answer Correct Answer: A) West to east. 58. Nitrogen helps in burning A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 59. MayorHas what /air/ spelling A) . B) . C) . D) . Show Answer Correct Answer: A) . 60. Winds are caused by differences in A) Turbulence. B) Air pressure. C) Humidity. D) Precipitation. Show Answer Correct Answer: B) Air pressure. ← 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 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books