Atmospheric Science MCQs

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1. : Which layer of the atmosphere contains the ozone layer?





2. : Which gas makes up the largest proportion of Earth’s atmosphere?





3. : The boundary between the troposphere and stratosphere is called the:





4. : Which instrument is used to measure atmospheric pressure?





5. : Which layer of the atmosphere is responsible for auroras?





6. : Which gas is primarily responsible for the greenhouse effect?





7. : The region where weather phenomena mainly occur is the:





8. : Which type of cloud is associated with thunderstorms?





9. : The jet streams are found in which part of the atmosphere?





10. : Which instrument is used to measure humidity?





11. : Which gas filters harmful ultraviolet rays in the atmosphere?





12. : Which layer of the atmosphere protects Earth from meteors?





13. : The coldest layer of the atmosphere is the:





14. : Which instrument is used to measure wind speed?





15. : Which gas is a major component of smog?





16. : The phenomenon of scattering of light in the atmosphere explains why:





17. : The ionosphere is important because it:





18. : Which is the most abundant greenhouse gas?





19. : Which phenomenon causes the deflection of winds on Earth?





20. : Which layer is directly above the stratosphere?





21. : Acid rain is mainly caused by the emission of:





22. : Which part of the atmosphere is used for weather forecasting with balloons?





23. : Which gas has the highest global warming potential?





24. : What percentage of Earth’s atmosphere is oxygen?





25. : Which process describes the upward movement of warm air and downward movement of cool air?





26. : Which gas in the atmosphere is used in photosynthesis?





27. : The main cause of global warming is the increase of which gas?





28. : Which phenomenon causes temperature inversion in the atmosphere?





29. : Which cloud type appears wispy and feathery?





30. : Which atmospheric layer contains the weather satellites?





31. : What is the approximate thickness of the troposphere at the equator?





32. : The greenhouse effect keeps Earth’s average surface temperature around:





33. : Which gas causes depletion of the ozone layer?





34. : Which term describes the long-term average weather conditions of a region?





35. : Which layer of the atmosphere is the hottest?





36. : Which atmospheric layer merges into outer space?





37. : Which element is most abundant in Earth’s atmosphere?





38. : Which is a secondary air pollutant?





39. : The trade winds blow from which direction in the tropics?





40. : Which process in the atmosphere causes rain formation?





41. : Which instrument is used to measure solar radiation?





42. : Which type of rainfall occurs when moist air rises over mountains?





43. : The unit of atmospheric pressure is:





44. : Which phenomenon causes the twinkling of stars?





45. : The D-layer of the ionosphere mainly absorbs:





46. : Which circulation describes large-scale movement of air due to uneven heating?





47. : Which layer of atmosphere is used for commercial flights?





48. : The “hole” in the ozone layer is most prominent over:





49. : Which phenomenon occurs due to reflection of sound waves in the atmosphere?





50. : Which type of cloud is known as “fair weather clouds”?





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