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. Where do greenhouse gases warm up the Earth?






2. Number of days that exceed a given temperature






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






4. 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.






5. In troposphere = greenhouse warming gas - However - most of it is in the stratosphere.






6. Fresh snow and snow-covered sea ice may have an albedo higher than 80% - even when melting in the summer. Sea ice has a higher albedo and can absorb as little as 10% of the solar energy. On average - sea ice albedo is around 85%






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






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






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






10. Nitrogen (N2 78%) and Oxygen (O2 21%) - Their linear 2 atom molecular structure






11. Soil at or below the freezing point of water for two or more years - Can be: Terrestrial - Subsea - Can be: Continuous: exists across a landscape as an unbroken layer. More than 90% is frozen - Discontinuous






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






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






14. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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15. Amount of light absorbed by surface






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






17. 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.






18. Ozone layer in high stratosphere (25-40 km altitude) absorbs about 95-99% of ultraviolet radiation.






19. A dome shaped cover of perennial ice and snow.






20. 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






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






22. 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






23. Sea ice - Glaciers and Ice sheets - Alaska- ice glaciers - Greenland- ice sheets






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






25. 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.






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






27. Peru and Ecuador to the equatorial central pacific - Causes irregular warming in sea surface






28. InSAR - +snow/-ice loss - ice dynamics - requires a lot of data.






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






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






31. US is responsible for ___ of the total CO2






32. 1.4 USA - 57 m total sea level equivalent






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






34. Help darkens the snow and ice surface - increasing the amount of energy that is absorbed.






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






36. Refers to the irregular warming in the Sea Surface Temperatures (SST) from the coasts of Peru and Ecuador to the equatorial central Pacific - the Southern Oscillation






37. Taliks are found under lakes because of the ability of water to store and vertically transfer heat energy - Vertical extent of the taliks found under lakes is related to the depth and volume of the overlying water body.






38. Positive Albedo Feedback - increase in temperature melts ice and snow reduces albedo increases temperature melts ice and snow reduces albedo... ETC






39. The land-surface configuration that results from the melting of ground ice in a region where permafrost degrades is called Thermokarst.






40. The difference between the incoming radiation energy and the outgoing radiation energy - A measure of the net energy.






41. Melting Point decreases






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






43. Ice melting rapidly? What type causes sea level to rise? What have been the main contributors to sea level rise so far? What are the impacts of melting ice? - On nature - On humans






44. Holds unique and key information - Are highly interconnected - Respond and drive climate change - Are the largest freshwater reservoirs of the planet - Ice cores tell us that in climate records - nothing is regular and ice sheet plays major role.






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






46. Descending Air dry - Convection cells are wet.






47. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






48. Over the Northern Hemisphere than the tropics.






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






50. 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