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






2. 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.






3. Low clouds are a ____ feedback; they will reflect more sunlight. Clouds reflect shortwave radiation but also absorb longwave radiation






4. Cooler water and drought conditions.






5. LW - SW - 55% absorbed by surface






6. Concentration of 380 ppmv - Have risen about 40% - Preindustrial~ 270~280 ppmv






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






8. Antarctica - stratosphere - Sep-Oct






9. How much is the planet really warming?






10. Surface Mass Balance is of the order of _____ melting is ____ times more.






11. 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.






12. Changes in the Earth's solar radiation levels can impact the climate. Shortterm warming cycles on Earth.






13. Rainy on yearly average. In these regions - rising air predominates.






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






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






16. The last portion of a glacier grounded to bedrock - after this line there are ice shelves.






17. Average molecular life span is less than 10 years - Major sources: Wetlands and oceans - Raising cattle and landfills.






18. In ________- inversion layer is more common in the Arctic






19. By contrast reflects only about 7% of solar radiation (Albedo~7%) - absorbing 93%.






20. When inversion breaks up _______________. - Consequently - anything that breaks inversions or makes them form less often could produce major ground level warming.






21. Climate models suggest once the sea ice cover is thinned sufficiently - a strong kick from natural variability could initiate a rapid slide towards ice-free conditions in the summer.






22. 10 : 1 - grounding ; surface






23. Long time series started in the '70s and yielding good data in the '90s - Detects elevation with high accuracy: 10 cm precision (laser) to 1 m (radar) - 2/3 Gravity Surveys (GRACE) - Weighing the total mass every 30 days - Direct monthly estimate






24. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






25. 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.






26. O The amount of energy moving in the form of photons or other elementary particles at a certain distance from the source per unit of area per second. Area/second






27. Where does the ozone protect us?






28. Permafrost- A frozen soil






29. 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






30. Measures input and output.






31. Same amount of H2O - Mass does not change - Density of ice < density of water - Volume of ice > volume of water






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






33. Number of days that exceed a given temperature






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






35. Industrial product - 300 ppb (parts per billion)






36. Poor resolution (200-400 km) does not allow us to distinguish glaciers and basins.






37. Amount of light absorbed by surface






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






39. 1. Land usage changes 2. Seasonal timing 3. Rising CO2 levels may be a factor






40. 1. They are the largest contributor to sea level rise 2. Can affect the thermohaline circulation (mainly in Greenland) 3. Are directly connected to climate change






41. he increase of ozone concentration in the atmosphere helps ____ our planet






42. Pockets of ice in the topmost permafrost caused by thawing which create an underground lake.






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






44. Refers to a body of freshwater - usually shallow - formed in a depression by melt water from thawing permafrost.






45. Top layer of soil that thaws during the summer and freezes again during autumn. - Between 1 and 3 m thick.






46. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






47. Ice sheets have a very ____ Albedo






48. Wet gets _____ - dry gets ____ - Wet - 50ON (sub polar) Canada - N Europe - Russia - Tropical area- monsoon (rainforest) - Drier - Subtropics - Australia - S. Africa - Mediterranean - Caribbean - Mexico - SW US






49. Ocean retains ____ CO2






50. This is the total mass change - difference between input and outputs—snow accumulation-ablation.







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