This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 29 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 29 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is one way to reduce the amount of energy you use at home? A) Buy more clothes instead of washing dirty ones. B) Turn off the TV when not watching. C) Put your food in the freezer instead of the refrigerator. D) Use the air conditioner more often. Show Answer Correct Answer: B) Turn off the TV when not watching. 2. The increase in air pollution has led to the Taj Mahal becoming more beautiful. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 3. The wind blowing from the west is known as A) Easterly. B) Monsoon. C) Westerly. D) None of these. Show Answer Correct Answer: C) Westerly. 4. Plants do not give out water vapour. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. Which gas is used in controlling fires? A) Oxygen. B) Carbon dioxide. C) Nitrogen. D) Hydrogen. Show Answer Correct Answer: B) Carbon dioxide. 6. Explain the role of air pressure in the formation of fronts. A) Fronts are formed due to the rotation of the Earth. B) Air pressure differences create movement of air masses, leading to the formation of warm and cold fronts. C) Fronts are formed by the interaction of different ocean currents. D) Air pressure has no role in the formation of fronts. Show Answer Correct Answer: B) Air pressure differences create movement of air masses, leading to the formation of warm and cold fronts. 7. How much nitrogen is in the air? (%) A) 75%. B) 71%. C) 68%. D) 60%. Show Answer Correct Answer: C) 68%. 8. What happens when Air is heated? A) It contracts. B) It expands. C) All the above. D) None of the above. Show Answer Correct Answer: B) It expands. 9. How do we characterize an air mass that forms over near the equator? A) Dry. B) Wet. C) Cold. D) Warm. Show Answer Correct Answer: D) Warm. 10. What is the major cause for air pollution? A) Deforestation. B) Oil spills. C) Transportation. D) Cigarette. Show Answer Correct Answer: C) Transportation. 11. Why does cold air sink? A) It is more dense. B) It is less dense. C) It is sad. D) It just does. Show Answer Correct Answer: A) It is more dense. 12. Paragraph 7 focuses primarily on- A) The general atmosphere aboard Air Force One. B) The kinds of meetings held aboard Air Force One. C) The presidential advisers who have traveled on Air Force One. D) The staff members who accompany the president on Air Force One. Show Answer Correct Answer: A) The general atmosphere aboard Air Force One. 13. CFC's cause harm to our A) Troposphere. B) Inversion Layer. C) Ozone Layer. D) Carbon Dioxide. Show Answer Correct Answer: C) Ozone Layer. 14. Which of the following is not a natural contaminant of air? A) Water Vapour. B) Salt particles. C) Pollen grain. D) Sulphuric Acid. Show Answer Correct Answer: D) Sulphuric Acid. 15. Air is present in places that appear to be empty. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. When the Ozone Layer loses Ozone what happens to organisms on the earth's surface? A) They are exposed to Smog. B) They are exposed to Ultraviolet B Radiation. C) Nothing happens. D) They are exposed to Acid Rain. Show Answer Correct Answer: B) They are exposed to Ultraviolet B Radiation. 17. Air contains water in the form of ..... A) Ice. B) Dust. C) Water vapour. D) None of the above. Show Answer Correct Answer: C) Water vapour. 18. The covering of air around the earth is called ..... A) Water vapour. B) Atmosphere. C) Hemisphere. D) Blanket. Show Answer Correct Answer: B) Atmosphere. 19. Nodules of leguminous plants contains- A) Symbiotic bacteria. B) Plant proteins. C) All the above. D) None of the above. Show Answer Correct Answer: A) Symbiotic bacteria. 20. What are the important objects for survival of plants and animals? A) Rainfall. B) Sunlight. C) Oxygen. D) All of these. Show Answer Correct Answer: D) All of these. 21. What are the effect of air pollution? A) Respitory problems. B) Destruction of ozone layer. C) Increse in surface temprature. D) All of the above. Show Answer Correct Answer: D) All of the above. 22. We can Breathe in stratosphere without oxygen cylinder A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 23. We need the air for ..... A) Nadar. B) Live. C) Cook. D) Play. Show Answer Correct Answer: B) Live. 24. Air takes up ..... in any container that it is in. A) Pumps. B) Space. C) Pressure. D) Squeezed. Show Answer Correct Answer: B) Space. 25. True or False Are all spellings for /air/ sound A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. ← 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