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. 85%






2. 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






3. 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






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






5. ~10% of incident solar energy (albedo 90)






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






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






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






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






10. How often does El Nio occur?






11. 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.






12. Same as heating an apartment v home - Thinner atmosphere than tropics; warms faster.






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






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






15. Industry 40% - Buildings 31% - Transportations 22% - Agriculture 4%






16. US is responsible for ___ of the total CO2






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






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






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






20. Number of days that exceed a given temperature






21. Trade winds blow from East to West - Pool of warm water in the west - Meanwhile deep colder water rises up in the Eastern Pacific - The sea level is ~ 50-60 cm higher in Western Pacific (Indonesia) than in the Eastern Pacific (South America/Peru) -






22. 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.






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






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






25. How much is the planet really warming?






26. Cooler water and drought conditions.






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






28. 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.






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






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






31. The Earth emits this.






32. Betts et al found that: if CO-2 __________ this has a physiological effect on plant transpiration increased simulated runoff by 6% b. How? i. More CO2 1. Plants pores open less 2. This reduces transpiration 3. More water in the land surface






33. The air can hold less water vapor - Consequently - less water can be evaporated in the air - and only a small portion of energy is used in this process - Most of the energy that reaches the Arctic goes directly into warming the air






34. Temperature needed to melt at depth is much lower than that needed to melt at the surface.






35. Summer increase in cloud cover - Winter decrease in cloud cover.

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36. 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






37. High vs low






38. Melting Point decreases






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






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






41. 1. We live in troposphere. Greenhouse gases here warm up the Earth 2. Above stratosphere. The ozone in this layer protects us.






42. 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%






43. Amount of light absorbed by atmosphere






44. The past climate...for this reason - both keep good records of climate change.






45. 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.






46. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






47. South polar vortex - Temperatures drop below 80O Celsius in the lower stratosphere - At these temperatures the chemicals in the stratosphere freeze and form Polar Stratospheric Clouds (PSCS) - These increase the concentration of CFCs in turn destroyi






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






49. Over the Northern Hemisphere than the tropics.






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