This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Geography > Air > Class 7 Geography Chapter 4 Air – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 10 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The gravitational force is very less in this layer. A) IONOSPHERE. B) IONOSPHERE. C) STRATOSPHERE. D) Exosphere. Show Answer Correct Answer: D) Exosphere. 2. Water is called ..... because it can dissolve a lot of things. A) Universal dissolve. B) Universal liquid. C) Universal insulator. D) Universal solvent. Show Answer Correct Answer: D) Universal solvent. 3. A dry and hot air mass would be ..... A) Continental tropical. B) Maritime arctic. C) Continental polar. D) Maritime tropical. Show Answer Correct Answer: A) Continental tropical. 4. Measures how fast or how slow molecules are moving A) Thermometer. B) Temperature. C) Heat. D) All of them. Show Answer Correct Answer: B) Temperature. 5. The Boeing 767 is the largest passenger plane ever built. A) No. B) Yes. C) Hmmm Not sure . D) None of the above. Show Answer Correct Answer: A) No. 6. What are the impacts on the environmentof fluorinated greenhouse gases? A) Contributes to the formulation of acidrain. B) Contributes to the global warming. C) Mixes with the Nitrogen within theatmosphere to create a toxic substance, Nox. D) Has little or no detrimental effect. Show Answer Correct Answer: B) Contributes to the global warming. 7. Air is ..... and capable of being compressed. A) Flowing. B) Wet. C) Pressurized. D) Fluid. Show Answer Correct Answer: D) Fluid. 8. Temperature in villages is much higher than that of cities. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 9. What does CFC stand for? A) Carbon Four Chemicals. B) Chlorofluorocarbons. C) Chinese Fossil Chemicals. D) It does not stand for anything. Show Answer Correct Answer: B) Chlorofluorocarbons. 10. Tyres are filled with ..... A) Air. B) Water. C) All the above. D) None of the above. Show Answer Correct Answer: A) Air. 11. How is the air at the surface of the Earth heated? A) The air is heated by the sun. B) The air is heated as solar energy is transferred to the equator and then dispersed to the two hemispheres. C) The air is heated as the earth moves closer to the sun in it's orbit. D) The air is heated by the transfer of thermal energy from the ground below. Show Answer Correct Answer: D) The air is heated by the transfer of thermal energy from the ground below. 12. Which of the following gases is used by plants to make food? A) Nitrogen. B) Oxygen. C) Carbon dioxide. D) None of the above. Show Answer Correct Answer: C) Carbon dioxide. 13. The water cycle changes salt water into fresh water. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. The energy you get during respiration is needed for what three things? A) Growth, new cells, air. B) Growth, repair, movement. C) New cells and movement. D) Breathing and moving. Show Answer Correct Answer: B) Growth, repair, movement. 15. During breathing human take in ..... gas and breathe out ..... gas. A) Hydrogen, carbon dioxide. B) Hydrogen, oxygen. C) Oxygen, carbon dioxide. D) Carbon dioxide, nitrogen. Show Answer Correct Answer: C) Oxygen, carbon dioxide. 16. How do we characterize an air mass that forms over the ocean? A) Cold. B) Dry. C) Wet. D) Warm. Show Answer Correct Answer: C) Wet. 17. What is causing temperatures to get warmer on earth? A) The earth is moving closer to the sun. B) The sun is just getting hotter; no one knows why. C) Carbon dioxide and other greenhouse gases are trapping more and more heat from the planet. D) None of the above. Show Answer Correct Answer: C) Carbon dioxide and other greenhouse gases are trapping more and more heat from the planet. 18. ..... gas in the air that helps burning A) Oxygen. B) Nitrogen. C) Carbon dioxide. D) None of the above. Show Answer Correct Answer: A) Oxygen. 19. Which among the following shows evaporation? A) Water falls as rain. B) Water changes into water vapour. C) Water vapour changes into water. D) Water changes into snow. Show Answer Correct Answer: B) Water changes into water vapour. 20. What type of air mass would form over the Atlantic Ocean and bring warm, humid air to the United States? A) Maritime Polar. B) Continental Polar. C) Maritime Tropical. D) Continental Tropical. Show Answer Correct Answer: C) Maritime Tropical. 21. What causes pilots to always check the weather? A) Pilots can control how the balloon moves, and can move the balloon how they want. B) Pilots don't care about the weather. C) Pilots want to keep everyone safe before the go on a flight. D) Pilots cannot control how the balloon moves, and need to make sure the wind is calm and the air is cool. Show Answer Correct Answer: D) Pilots cannot control how the balloon moves, and need to make sure the wind is calm and the air is cool. 22. What is composition of Nitrogen? A) 78.1%. B) 72%. C) 78%. D) 78.5%. Show Answer Correct Answer: A) 78.1%. 23. Which among the following gases do not contribute to green house effect? A) Water vapour. B) Nitrogen dioxide. C) Carbon dioxide. D) Methane. Show Answer Correct Answer: A) Water vapour. 24. Air resistance pushes against fallingobjects and ..... A) Slows them down. B) Keeps them afloat. C) Speeds them up. D) Spins them. Show Answer Correct Answer: A) Slows them down. 25. Where would you expect to find a highpressure liquid within an AC system? A) Between the compressor and the TXV. B) Between the TXV and the Evaporator. C) Between the compressor and the condenser. D) Between the Condenser and the TXV. Show Answer Correct Answer: D) Between the Condenser and the TXV. 26. What happens to your breathing rate when you exercise? A) Stays the same. B) Increases. C) Decreases. D) None of the above. Show Answer Correct Answer: B) Increases. 27. As your distance from the equator increases, what happens to the average temperature? A) The temperature increases. B) The temperature decreases. C) The temperature stays the same. D) None of the above. Show Answer Correct Answer: B) The temperature decreases. 28. The ..... is used to make the nose of the airplane yaw left or right. A) Rudder. B) Ailerons. C) Elevator. D) Flaps. Show Answer Correct Answer: A) Rudder. 29. The Particles of Liquids are ..... packed. A) Loosely. B) Very Loosely. C) Tightly. D) None of the above. Show Answer Correct Answer: A) Loosely. 30. Where are air preasure used? A) Syringes. B) Handpump. C) Dropper. D) All of the Above. Show Answer Correct Answer: D) All of the Above. 31. What types of air masses would be warmer? A) Continental. B) Maritime. C) Tropical. D) Polar. Show Answer Correct Answer: C) Tropical. 32. Which of these is an impact of acid rain? A) Gives off chemicals. B) Reduces the amount of coal used. C) Dissolves nutrients in the soil. D) Raises oxygen levels. Show Answer Correct Answer: C) Dissolves nutrients in the soil. 33. Is carbon monoxide dangerous A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 34. What is the approximate percentage of oxygen in expired air? A) 0.04%. B) 16%. C) 21%. D) 4%. Show Answer Correct Answer: C) 21%. 35. When the ELR is equal to ALR it is termed as A) Lapse Rate. B) Super ALR. C) Sub ALR. D) Neutral ALR. Show Answer Correct Answer: D) Neutral ALR. 36. Acid precipitation can lead to all of the following EXCEPT ..... A) A decrease in a community's standard of living. B) An increase in respiratory ailments. C) An increase of aquatic biodiversity. D) A destruction of historic monuments. Show Answer Correct Answer: C) An increase of aquatic biodiversity. 37. What kind of weather can be expected in areas of high pressure? A) Fair weather. B) Cloudy weather. C) Stormy weather. D) None of the above. Show Answer Correct Answer: A) Fair weather. 38. The ..... is a part of an airplane that produces much of an airplane's total lift when air flows over it. A) Aileron. B) Wing. C) Rudder. D) Elevator. Show Answer Correct Answer: B) Wing. 39. As the temperature rises, air pressure ..... A) Increases. B) Decreases. C) All the above. D) None of the above. Show Answer Correct Answer: B) Decreases. 40. When we blow into a balloon, air takes up ..... inside the balloon, making it bigger A) Burn. B) Space. C) Water. D) Move. E) Weight. Show Answer Correct Answer: B) Space. 41. Does the air pollution causes the equal effect on all the human beings? A) Yes. B) No. C) May Be. D) Not Sure. Show Answer Correct Answer: B) No. 42. Who does NOT look after you on the plane? A) A flight attendant. B) A fly attendant. C) A steward. D) A stewardess. Show Answer Correct Answer: B) A fly attendant. 43. What is the percentage of carbon dioxide in the atmosphere? A) 0.03%. B) 0.93%. C) 0.04%. D) None of the above. Show Answer Correct Answer: A) 0.03%. 44. Which type of air mass would most likely have low humidity and high air temperature? A) CP. B) CT. C) MT. D) MP. Show Answer Correct Answer: B) CT. 45. ..... is odourless. A) Pollution. B) Water. C) Air. D) None of the above. Show Answer Correct Answer: C) Air. 46. What happens to air when it is heated? A) It compresses and shrinks. B) It rises. C) It expands. D) It expands and rises. Show Answer Correct Answer: D) It expands and rises. 47. Rain is an example of ..... A) Condensation. B) Precipitation. C) Evaporation. D) None of the above. Show Answer Correct Answer: B) Precipitation. 48. A cold front is, , , , , A) A cold air mass that bumps against a warm air mass. B) A warm air mass meets a colder air mass and slowly rises over it. C) All the above. D) None of the above. Show Answer Correct Answer: A) A cold air mass that bumps against a warm air mass. 49. ..... can be used as Air Ambulance. A) Fighter plane. B) Helicopter. C) All the above. D) None of the above. Show Answer Correct Answer: B) Helicopter. 50. Global warming is due to A) Greenhouse gases. B) Nitric and sulfuric acids. C) CFCs. D) Ozone depletion. Show Answer Correct Answer: A) Greenhouse gases. 51. Air pollution is the cleaning of the air A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 52. If astronauts didn't wear spacesuits in the moon what will happen? A) The blood vessels will burst. B) Astronauts will be fine. C) He will float in the space and be alive. D) None of the above. Show Answer Correct Answer: A) The blood vessels will burst. 53. A ..... can damage many things. A) Storm. B) Breeze. C) All the above. D) None of the above. Show Answer Correct Answer: A) Storm. 54. Winds form in response to the ..... A) Uneven heating of the Earth's surface. B) Rotation of the Earth on its axis. C) Friction between ocean current and the atmosphere. D) Breeze blowing on the Earth's surface. Show Answer Correct Answer: A) Uneven heating of the Earth's surface. 55. The building at an airport that is used by passengers leaving or arriving by aircraft. A) Terminal. B) Check-in desk. C) Departure lounge. D) Baggage reclaim. Show Answer Correct Answer: A) Terminal. 56. What do greenhouse gases do? A) Trap heat inside our atmosphere. B) Make the sky blue. C) Keep plants growing. D) Keep out sunlight. Show Answer Correct Answer: A) Trap heat inside our atmosphere. 57. What weather instrument measures air pressure? A) Anemometer. B) Thermometer. C) Hygrometer. D) Barometer. Show Answer Correct Answer: D) Barometer. 58. What is greenhouse effect related to? A) Air. B) Plants. C) Animals. D) Water. Show Answer Correct Answer: B) Plants. 59. There is air till a height of about ..... km from the Earth A) 100. B) 50. C) 200. D) None of the above. Show Answer Correct Answer: B) 50. 60. Which property of Air is observed when air is filled in tyres? A) Air occupies space. B) Air exerts pressure. C) Air is needed for burning. D) Air has mass. Show Answer Correct Answer: A) Air occupies space. ← 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books