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






2. Really measures volume.






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






4. How much is the planet really warming?






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






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






7. Summer increase in cloud cover - Winter decrease in cloud cover.

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8. CO2 GHG forcing - H2O - dominant/major GHG






9. 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






10. Nitrogen (N2 78%) and Oxygen (O2 21%) - Their linear 2 atom molecular structure






11. 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.






12. Atmosphere retains ____ CO2






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






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






15. The buoyant force is equal to the weight of the displaced water.

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






17. 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






18. 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.






19. The amount of light reflected by an object.






20. 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%






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






22. Arctic troposphere is thinner (8-10 km) than the tropics...The depth of the atmospheric layer is much shallower in the Arctic - It takes less energy to warm the Arctic rather than the Tropics - Same as heating an apartment vs. a house






23. 1. They are the largest contributor to sea level rise 2. Can affect the thermohaline circulation (mainly in Greenland) 3. Are directly connected to climate change






24. Ice sheets have a very ____ Albedo






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






26. 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






27. SMB- mass balance due to processes that affect the surface of the ice sheet. Precipitation- evapotranspiration-runoff-blowing snow etc.






28. 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






29. 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






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






31. Precipitation extremes appear to generally increase across the planet at especially high latitudes.






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






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






34. O Unfrozen soil that stays within the permafrost.






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






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






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






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






39. ~15% of incident solar energy (albedo 85)






40. Where do greenhouse gases warm up the Earth?






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






42. Amount of light absorbed by surface






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






44. Descending Air dry - Convection cells are wet.






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






46. At the bottom of the ice sheets the temperature doesn't necessarily have to be above 0... it could _____ more easily because of the water






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






48. 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.






49. 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.






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