This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Planes that carry goods are called ..... A) Gliders. B) Position plans. C) All the above. D) None of the above. Show Answer Correct Answer: B) Position plans. 2. A-Hydrogen is required for burning.B-Aquatic organisms breathe oxygen dissolved in water. A) A-is correct, B-is false. B) A-is false, B-is true. C) Both A & B are true. D) Both A & B are false. Show Answer Correct Answer: B) A-is false, B-is true. 3. Which type of air mass is associated with warm, dry atmospheric conditions? A) CP. B) CT. C) MP. D) MT. Show Answer Correct Answer: B) CT. 4. The ..... has corroded the marbles of the monument. As a result, the Taj Mahal looks discolored. A) Oxygen. B) Carbon dioxide. C) Acid Rain. D) Rain. Show Answer Correct Answer: C) Acid Rain. 5. By compressing an air pump you ..... air from the pump to another container. A) Gauge. B) Force. C) Transfer. D) Pop. Show Answer Correct Answer: C) Transfer. 6. If an air mass is sinking, it must be A) Cold and less dense. B) Cold and more dense. C) Warm and more dense. D) Warm and less dense. Show Answer Correct Answer: B) Cold and more dense. 7. In a typical system, within whichcomponent would the evaporation of refrigerant take place? A) Condenser. B) Receiver dryer. C) Evaporator. D) Compressor. Show Answer Correct Answer: C) Evaporator. 8. Impure air is bad for A) Health. B) House. C) Pond. D) Bed. Show Answer Correct Answer: A) Health. 9. ..... emit smoke A) Trees. B) Factories. C) Water. D) None of the above. Show Answer Correct Answer: B) Factories. 10. Air, water, and soil are affected by ..... A) Pollution. B) Water falls. C) Rain. D) None of the above. Show Answer Correct Answer: A) Pollution. 11. Why is the ozone layer vital to life on Earth? A) Planes fly in the ozone layer. B) It is made up of oxygen (O$_{2}$). C) It shields the Earth from ultraviolet (UV) rays from the sun. D) It causes clouds to be created. Show Answer Correct Answer: C) It shields the Earth from ultraviolet (UV) rays from the sun. 12. What is produced when combustable substance is in the vapour state and burn strongly in the presence of of air? A) Heat. B) Light. C) Flame. D) Fumes. Show Answer Correct Answer: C) Flame. 13. Which layer helps transmit radio transmissions? A) Radiosphere. B) Lonosphere. C) Ozone layer. D) ThermosphereTagslayers of atmosphere. Show Answer Correct Answer: D) ThermosphereTagslayers of atmosphere. 14. The air particles inside the jar collide more. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 15. In what direction(s) does air exert pressure? A) Everywhere. B) No where. C) There is no pressure. D) Downward. Show Answer Correct Answer: A) Everywhere. 16. Even an empty bottle is filled with ..... A) Space. B) Invisible water. C) Air. D) Nothing. Show Answer Correct Answer: C) Air. 17. The layer of atmosphere in which space shuttles orbit is called ..... A) Exosphere. B) Thermosphere. C) Stratosphere. D) Troposphere. Show Answer Correct Answer: B) Thermosphere. 18. Which of these is a greenhouse gas A) Carbon monoxide. B) Carbon dioxide. C) Helium. D) Sulfer. Show Answer Correct Answer: B) Carbon dioxide. 19. If air has been ..... a lot of it will have a higher air pressure. A) Decompressed. B) Compressed. C) All the above. D) None of the above. Show Answer Correct Answer: B) Compressed. 20. Which of these is an effect of air pollution? A) Respiratory problems. B) Reduced food sources for humans. C) Increased disease for humans. D) Decrease in global temperatures. Show Answer Correct Answer: A) Respiratory problems. 21. Which of the following provides the relationship between the optimum indoor effective temperature and optimum outdoor effective temperature? A) Clothing. B) Occupants. C) Duration of stay. D) Climatic and seasonal differences. Show Answer Correct Answer: D) Climatic and seasonal differences. 22. What instrument do you use to measure relative humidity? A) Barometer. B) Psychometer. C) Wind mill. D) Weather vane. Show Answer Correct Answer: B) Psychometer. 23. Pick the word that matches the definition:is the frictional force air exerts against a moving object. A) Friction. B) Air Resistance. C) Gravity. D) Force. Show Answer Correct Answer: B) Air Resistance. 24. When harmful substances build up in the air to unhealthy levels it is known as ..... A) Unfortunate. B) Air pollution. C) Chemicalization. D) Water pollution. Show Answer Correct Answer: B) Air pollution. 25. A light, gentle wind is generally called a ..... A) Breeze. B) Storm. C) Tornado. D) Wind. Show Answer Correct Answer: A) Breeze. ← 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 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 10Class 7 Geography Chapter 4 Air Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books