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






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






3. 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.






4. Warming- positive feedback - Cooling- negative feedback.






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






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






7. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.


8. LW - SW - 55% absorbed by surface






9. Grounding line is the last portion of a glacier grounded to bedrock - after this line there are ice shelves - Glaciers contribute to sea level rise after passing the grounding line - Maximum thinning at grounding line.






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






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






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






13. Absolute thresholds - Monthly maximums and minimums - Threshold departures - Percentile departure - Atmospheric Water Vapor: More water vapor in the air - warmer nights!






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






15. 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) -






16. ~10% of incident solar energy (albedo 90)






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






18. 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.






19. Total absorbed solar radiation






20. 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.






21. Holds unique and key information - Are highly interconnected - Respond and drive climate change - Are the largest freshwater reservoirs of the planet - Ice cores tell us that in climate records - nothing is regular and ice sheet plays major role.






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






23. How often does El Nio occur?






24. 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






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






26. Set up in 1988 by WMO and UNEP.






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






28. Is not an externally imposed perturbation to the climate system.






29. 10 : 1 - grounding ; surface






30. The Earth emits this.






31. Radiation absorbed by atmospheric greenhouse gases?






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






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






34. Carbon dioxide - Methane - Ozone - Water Vapor - Few others - Most ___________________ are mixed in the troposphere (Except water vapor) - Water vapor is concentrated closer to the ground.






35. Mass balance due to processes that affect the surface of the ice sheet. Precipitation-evapotranspiration-runoff-blowing snow etc...






36. Measures input and output.






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






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






39. 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.






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






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






42. O Unfrozen soil that stays within the permafrost.






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






44. 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






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






46. Occurs when there is not enough water available for a particular crop to grow at a particular time.Typically seen after!meteorological drought (when rainfall decreases) but before a hydrological drought






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






48. Some parts of the planet are dry because of their location: most of the deserts are around 30 N and 30 S - where sinking air predominates






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






50. In ________- inversion layer is more common in the Arctic