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






2. Most of the deserts are around 30 N and 30 S - where sinking air predominates






3. Water vapor means more water up in the clouds and less in the ground!






4. Set up in 1988 by WMO and UNEP.






5. Massive cooldown has allowed colder conditions to persist leading to cfcs stabilizing leading to ozone depletion. Later - more warming will lead to more moisture in the air which will lead to more snowfall!






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






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






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






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






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






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






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






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






14. 1. Altimetry survey 2. Time-variable gravity 3. Ice motion + Regional Climate Modeling






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






16. 240 w/m squared






17. Total absorbed solar radiation






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






19. 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:






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






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






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






23. Greenhouse gases are mixed in the ____






24. 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%






25. High vs low






26. 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.






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






28. 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) -






29. Land Based Ecosystems retain ____ CO2.






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






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






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






33. 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.






34. 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






35. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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36. 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.






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






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






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






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






41. How much is the planet really warming?






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






43. Like weighing oneself on the scale.






44. 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.






45. Laser radar - H V - Long time series - high accuracy - Density






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. LW - SW - 55% absorbed by surface






48. The Earth emits this.






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






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