Test your basic knowledge |

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. Like weighing oneself on the scale.






2. Just remember the general direction of the circulation - Rising northern pacific. You start in between Greenland and Europe (youngest water) - Oldest water is in the Pacific Ocean - Salty water> fresh water - Cold Water > Warm Water






3. Reduction of snow and ice cover - Changes in atmospheric circulation.






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






5. LW - SW - 55% absorbed by surface






6. Atmosphere retains ____ CO2






7. Arctic troposphere is thinner (8-10 km) than the tropics...The depth of the atmospheric layer is much shallower in the Arctic - It takes less energy to warm the Arctic rather than the Tropics - Same as heating an apartment vs. a house






8. Land Based Ecosystems retain ____ CO2.






9. High cloud has a _____ effect and cool cloud has a ____ effect






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






11. Precipitation extremes appear to generally increase across the planet at especially high latitudes.






12. How often does El Nio occur?






13. An area of unfrozen ground that is open to the ground surface but otherwise enclosed in permafrost.






14. Thawing permafrost weakens coastal lands. Risk of flooding in coastal wetlands. Pollution and toxins locked in the snow and ice will be released.






15. SMB- mass balance due to processes that affect the surface of the ice sheet. Precipitation- evapotranspiration-runoff-blowing snow etc.






16. Melting Point decreases






17. The buoyant force is equal to the weight of the displaced water.

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18. Tundra absorbs more energy than ice and snow but less than scrubs and forest - and with those plants migrating towards the north - they will further contribute ot absorb more energy.






19. The Earth emits this.






20. Hydrological drought is associated with the effect of low rainfall on water levels in rivers -!reservoirs -!lakes and aquifers.






21. Really measures volume.






22. 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






23. Total absorbed solar radiation






24. Water vapor - 36-70% - carbon dioxide - 9-26% - methane - 4-9% - ozone - 3-7%






25. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






26. CO2 ____ in winter in the NH and ____ decreases during the 'greening season'






27. Some parts of the planet are dry because of their location: most of the deserts are around 30 N and 30 S - where sinking air predominates






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






29. When meltwater seeps through a flowing glacier - it can lubricate the base and hasten the glacier's seaward flow.






30. The heat input is either driven by the 1- thermohaline circulation associated with sea ice formation. The direct influx of intermediate warmth water.






31. Set up in 1988 by WMO and UNEP.






32. The large-scale ocean circulation that moves water between the deep and surface ocean which effects salinity and temperature change - Supplies heat to the polar-regions.






33. Amount of light absorbed by atmosphere






34. Floating extensions are ice shelves - rivers of ice are ice streams or outlet glaciers - the junctions with the ocean are called the grounding line.






35. 1. Altimetry survey 2. Time-variable gravity 3. Ice motion + Regional Climate Modeling






36. Deep tropics between 15O N and 15 O S are quite rainy on yearly average. In these regions - rising air predominates.






37. Slow steady decline of about 4% per decade in the total volume of Earth's stratospheric ozone.






38. Is unfrozen ground that is exposed to the ground surface and to a larger mass of unfrozen ground beneath it.






39. The order of 1 m/year. Melting is ten times more.






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






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






42. Number of days that exceed a given temperature






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






44. More common






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






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






47. ~10% of incident solar energy (albedo 90)






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






49. Sea ice - Continental ice sheets - Permafrost (frozen soil) - Mountain glaciers - Snow cover






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