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. 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.






2. SALTY WATER = MORE DENSE - Maximum density at 4OC - This is why ice melting is a big deal; if the whole circle slows down - Ice bergs are fresh water higher sea level rise.






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






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






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






6. Prolonged period of excessively hot weather - Which may be accompanied by high humidity.






7. High clouds are a ____ feedback; larger greenhouse warming - Clouds reflect shortwave radiation but also absorb longwave radiation






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






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






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






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






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






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






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






16. Really measures volume.






17. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






18. Total absorbed solar radiation






19. Radiation that comes from the Sun - Visible light - 'near infrared' - ultraviolet radiation.






20. 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






21. US is responsible for ___ of the total CO2






22. Extent 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.






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






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






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






26. 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






27. ~15% of incident solar energy (albedo 85)






28. Rain is getting harder and the rain is lasting longer since the past couple of decades and will continue for that amount.






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

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30. High vs low






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






32. Permafrost- A frozen soil






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






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






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






36. Longwave radiation - any radiation with a long wave will heat up quickly.






37. 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






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






39. CO2 - CH4 - O3 - H2O - N2O - CFCs






40. Cooler water and drought conditions.






41. Amount of light absorbed by surface






42. Number of days when temperatures climb above average by a fixed amount.






43. Like weighing oneself on the scale.






44. Precipitation intensity will rise ___ for every 1 OC of warming.






45. Where do greenhouse gases warm up the Earth?






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






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






48. 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.






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






50. Heat is provided by outside sources that flow down the continental slope to reach the deepest part of the glacier. High pressure decreases the melting point and favors melting.