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






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






3. If the Earth is warmer - are we going to have the Hadley cell stronger or weaker? Hotter = heat rises which increases the circulation.






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






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






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






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






8. ~15% of incident solar energy (albedo 85)






9. Really measures volume.






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






11. 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






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






13. The amount of light reflected by an object.






14. Land Based Ecosystems retain ____ CO2.






15. 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.






16. All processes that add snow or ice to a glacier or to flowing ice or snow cover.






17. Like weighing oneself on the scale.






18. In _______ - the inversions are less frequent and weaker in the Arctic.






19. Higher temperature increases atmospheric water vapor @ global scale more water vapor in the air that causes nights to stay warmer.






20. Low clouds are a ____ feedback; they will reflect more sunlight. Clouds reflect shortwave radiation but also absorb longwave radiation






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






23. Closed talik can develop when lakes fill in with sediment and become deposits of dead plant material (bog).






24. 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






25. O The amount of energy moving in the form of photons or other elementary particles at a certain distance from the source per unit of area per second. Area/second






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






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






28. Industrial product - 300 ppb (parts per billion)






29. Cooler water and drought conditions.






30. High vs low






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






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






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






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






35. Changes in the Earth's solar radiation levels can impact the climate. Shortterm warming cycles on Earth.






36. Where does the ozone protect us?






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






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






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






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






41. Atmosphere retains ____ CO2






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






43. Greenhouse gases are a ___ portion of the atmosphere






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






45. O Unfrozen soil that stays within the permafrost.






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






47. The high pressure decreases the melting point and favors melting - Melt water being less dense rises along the water column along the ice shelf bottom and may either escape the cavity or refreeze at some intermediate depth. Melting point decreases:






48. Amount of light absorbed by surface






49. More common






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