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Global Warming

Subjects : literacy, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Rainy on yearly average. In these regions - rising air predominates.






2. Arctic warms faster than other parts of the globe in response to a given increase in greenhouse gasses - More direct route to warming - In the Arctic a greater fraction of any increase in radiation absorbed by the surface goes directly into warming t






3. Clouds 40~90% - Vegetation 10~15%






4. The warmer the temperature - the deeper the active layer - thaws and refreezes every year - Permafrost below freezing for two or more years.






5. High vs low






6. On a clear cold day - the thin layer of air hugging the ground is called inversion. This layer is much cooler than the air a few hundred meters above it.






7. O Climate change in the Arctic is occurring now - Changes have been huge already






8. Radiation absorbed by atmospheric greenhouse gases?






9. Reduction of Summer Sea- will increase the warming because less energy will be reflected back to the atmosphere by the ice and more will be absorbed by the ocean - Snow and snow covered ice absorb 15% of incident solar energy - Ice absorbs 10% of inc






10. Is not an externally imposed perturbation to the climate system.






11. The Day After Tomorrow - Circulation will slow by 10% to 50% in the next century






12. Melting Point decreases






13. Under higher pressure the melting point decreases ____ - The pressure comes from the weight of the ice shelf.






14. Most of the deserts are around 30 N and 30 S - where sinking air predominates






15. The major distinction between the Protocol and the Convention is that while the Convention encouraged industrialized countries to stabilize GHG emissions - the Protocol commits them to do so.






16. US is responsible for ___ of the total CO2






17. A thick - floating slab of freshwater ice extending from coast to coast.






18. Sea ice extent in Antarctica is rapidly reducing. Seasonal variability. People - Animals and Ice






19. Pollution: heat and sunlight cook the air and the chemical compounds which are in it. This combines with the nitrogen oxide and creates 'smog'. This makes breathing difficult for those with respiratory ailments.






20. If the mean annual air temperature is only slightly below 0 degrees C - permafrost will form only in spots that are sheltered.






21. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






22. A process whereby slabs of ice at the glacier margin mechanically fracture and detach from the main ice mass -






23. Is best viewed as a combination of...- Natural Variability - Associated with atmospheric circulation patterns - Growing Radiative Forcing - Associated with rising concentrations of atmospheric greenhouse gases - Strongly suggests a human influence.






24. Where do greenhouse gases warm up the Earth?






25. Troposphere - Stratosphere (Ozone Layer) - Mesosphere - Ionosphere






26. Over the past century what has happened to the Earth's temperature?






27. They saw a massive thinning of the ice where it enters into the ocean - This is due to the pronounced melting of the ice once it is in contact with the ocean. Melt rates of 25 m/year near the grounding lines and more than 10 m/year on average.






28. Really measures volume.






29. The depletion of stratospheric ozone layer in Antarctica in Springtime (august through October)






30. Less frequent and weaker






31. Absolute thresholds - Monthly maximums and minimums - Threshold departures - Percentile departure - Atmospheric Water Vapor: More water vapor in the air - warmer nights!






32. Unfrozen ground that is found within a mass of permafrost






33. The amount of light reflected by an object.






34. Atmospheric Cooling - Both negative (stabilizing) feedbacks - It is not happening now - but it has happened in the past - Ice-albedo feedback was the dominant feedback during the ice ages.






35. Higher temperature increases atmospheric water vapor @ global scale more water vapor in the air that causes nights to stay warmer.






36. A mass of land ice - continental or sub-continental in extent - and thick enough to cover most of the underlying bedrock topography - If you have a warm ocean - it will melt the ice sheet. Its shape is mainly determined by the dynamics of its outward






37. Total absorbed solar radiation






38. Volcanic eruptions - Sunspots - Wobbly Earth






39. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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40. Greenhouse gases are mixed in the ____






41. What can cause a change in the Earth's climate balance?






42. x7 smaller - 7m total sea level equivalent.






43. How often does El Nio occur?






44. Number of days that land among the hottest of all days in that month's long-term record.






45. Sea ice and continental ice. This is caused by Atmospheric warming triggers.






46. Frozen +2 years - Few centimeters to 1500 m






47. A naturally or artificially caused decrease in the thickness and/or areal extent of permafrost - It is caused by the deepening fo the active layer and the thawing of the adjacent permafrost.






48. Occurs when there is not enough water available for a particular crop to grow at a particular time.Typically seen after!meteorological drought (when rainfall decreases) but before a hydrological drought






49. In average: +1% in respect to 100 years ago.






50. Like weighing oneself on the scale.







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