This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 23 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. CUTTING DOWN OF TREES CAUSES ..... A) BURNING. B) AIR POLLUTION. C) GASES. D) CHEMICALS. Show Answer Correct Answer: B) AIR POLLUTION. 2. Nitrogen is utilized by? A) Animals. B) Humans. C) Plants. D) None of the above. Show Answer Correct Answer: C) Plants. 3. The gravitational force is very less in this layer. A) IONOSPHERE. B) Exosphere. C) IONOSPHERE. D) STRATOSPHERE. Show Answer Correct Answer: B) Exosphere. 4. Water is called ..... because it can dissolve a lot of things. A) Universal insulator. B) Universal dissolve. C) Universal solvent. D) Universal liquid. Show Answer Correct Answer: C) Universal solvent. 5. A dry and hot air mass would be ..... A) Maritime arctic. B) Maritime tropical. C) Continental tropical. D) Continental polar. Show Answer Correct Answer: C) Continental tropical. 6. 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. 7. 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. 8. 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. 9. Air is ..... and capable of being compressed. A) Fluid. B) Wet. C) Pressurized. D) Flowing. Show Answer Correct Answer: A) Fluid. 10. 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. 11. 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. 12. Tyres are filled with ..... A) Air. B) Water. C) All the above. D) None of the above. Show Answer Correct Answer: A) Air. 13. 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. 14. Argon is inert A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. 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. 16. 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. 17. 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. 18. During breathing human take in ..... gas and breathe out ..... gas. A) Hydrogen, oxygen. B) Hydrogen, carbon dioxide. C) Oxygen, carbon dioxide. D) Carbon dioxide, nitrogen. Show Answer Correct Answer: C) Oxygen, carbon dioxide. 19. How do we characterize an air mass that forms over the ocean? A) Dry. B) Wet. C) Cold. D) Warm. Show Answer Correct Answer: B) Wet. 20. 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. 21. ..... 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. 22. 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. 23. What type of air mass would form over the Atlantic Ocean and bring warm, humid air to the United States? A) Maritime Tropical. B) Maritime Polar. C) Continental Tropical. D) Continental Polar. Show Answer Correct Answer: A) Maritime Tropical. 24. 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. 25. What is composition of Nitrogen? A) 78%. B) 78.5%. C) 72%. D) 78.1%. Show Answer Correct Answer: D) 78.1%. ← 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