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






2. Radiation absorbed by atmospheric greenhouse gases?






3. Melting Point decreases






4. When meltwater seeps through a flowing glacier - it can lubricate the base and hasten the glacier's seaward flow.






5. Floating extensions are ice shelves - rivers of ice are ice streams or outlet glaciers - the junctions with the ocean are called the grounding line.






6. Forms from frozen ocean water - Floats on the ocean surface - Grows over the winter - melts in the summer






7. The difference between the incoming radiation energy and the outgoing radiation energy - A measure of the net energy.






8. 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






9. 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) -






10. 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






11. Rain is getting harder and the rain is lasting longer since the past couple of decades and will continue for that amount.






12. If the mean annual air temperature is only slightly below 0 degrees C - permafrost will form only in spots that are sheltered.






13. 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.






14. 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.






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






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






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






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






19. 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.






20. 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.






21. Where do greenhouse gases warm up the Earth?






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






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






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






25. Ocean retains ____ CO2






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






27. Less frequent and weaker






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






29. The Earth emits this.






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






31. Descending Air dry - Convection cells are wet.






32. Total absorbed solar radiation






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






34. 1.4 USA - 57 m total sea level equivalent






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






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






37. More common






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






39. Number of days that exceed a given temperature






40. 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






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






42. Average molecular life span is less than 10 years - Major sources: Wetlands and oceans - Raising cattle and landfills.






43. 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






44. Deep tropics between 15O N and 15 O S are quite rainy on yearly average. In these regions - rising air predominates.






45. Atmosphere retains ____ CO2






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






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






48. This is the total mass change - difference between input and outputs—snow accumulation-ablation.






49. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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







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