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. 240 w/m squared






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






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






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






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






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






7. O Unfrozen soil that stays within the permafrost.






8. The amount of light reflected by an object.






9. Really measures volume.






10. Warming- positive feedback - Cooling- negative feedback.






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






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






13. Melting Point decreases






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






15. 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.






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






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






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






19. 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






20. Amount of light absorbed by atmosphere






21. A climate forcing agent formed through the incomplete combustion of fossil fuels - biofuel - and biomass; emitted both anthropogenic:ally and naturally.






22. LW - SW - 55% absorbed by surface






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






24. 10 : 1 - grounding ; surface






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






26. O Climate change in the Arctic is occurring now - Changes have been huge already






27. Grace - Tells us how much mass change we have - M - This is the measure of gravity (gives us the mass) - Directly measure mass change - Poor resolution






28. The Earth emits this.






29. Where do greenhouse gases warm up the Earth?






30. Land Based Ecosystems retain ____ CO2.






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






32. Atmospheric Cooling - Both negative (stabilizing) feedbacks - It is not happening now - but it has happened in the past - Ice-albedo feedback was the dominant feedback during the ice ages.






33. Changes over time in the highest and lowest single temperature observed during a given month of the year.






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






35. 1.4 USA - 57 m total sea level equivalent






36. 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.






37. 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.






38. 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.






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






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






41. 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.






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






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






44. Greenhouse gases are mixed in the ____






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






46. Arctic warms faster than other parts of the globe in response to a given increase in greenhouse gasses - More direct route to warming - In the Arctic a greater fraction of any increase in radiation absorbed by the surface goes directly into warming t






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






48. Atmosphere retains ____ CO2






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






50. 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.






Can you answer 50 questions in 15 minutes?



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