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. 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.






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






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






4. Over the Northern Hemisphere than the tropics.






5. Is defined usually on the basis of the degree of dryness (in comparison to some 'normal' or average amount






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






7. Frozen +2 years - Few centimeters to 1500 m






8. 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.






9. Forms in a mosaic of favoured locations.






10. 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






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






12. Set up in 1988 by WMO and UNEP.






13. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






14. How much is the planet really warming?






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






16. On a clear cold day - the thin layer of air hugging the ground is called inversion. This layer is much cooler than the air a few hundred meters above it.






17. Number of days that exceed a given temperature






18. Water vapor - 36-70% - carbon dioxide - 9-26% - methane - 4-9% - ozone - 3-7%






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






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






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






22. 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.






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






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






25. Much of the Arctic is overlain by snow and sea ice (land ice and sea ice) - It makes warming a much bigger deal in the Arctic






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






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






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. Really measures volume.






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






31. 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






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






33. The Earth emits this.






34. Is unfrozen ground that is exposed to the ground surface and to a larger mass of unfrozen ground beneath it.






35. 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) -






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






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






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






39. Where does the ozone protect us?






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






41. O Unfrozen soil that stays within the permafrost.






42. Like weighing oneself on the scale.






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






44. 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.






45. Ice sheets have a very ____ Albedo






46. 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






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






48. Melting Point decreases






49. Sea ice extent in Antarctica is rapidly reducing. Seasonal variability. People - Animals and Ice






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






Can you answer 50 questions in 15 minutes?



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