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. Where do greenhouse gases warm up the Earth?






2. Forms in a mosaic of favoured locations.






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






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






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






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






7. 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.






8. 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.






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






10. Ice sheets have a very ____ Albedo






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






12. Amount of light absorbed by surface






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






14. 1. Keeps the ocean and the earth cooler 2. Coastal impacts of ice: prevents waves from eroding coastlines and protects from storms. 3. Ecological importance of ice: a. Most visibly for the many fish - birds - and mammal species that live in - on - or






15. In troposphere = greenhouse warming gas - However - most of it is in the stratosphere.






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






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






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. Land Based Ecosystems retain ____ CO2.






20. 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) -






21. The Earth emits this.






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






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






24. 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.






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






26. 10 : 1 - grounding ; surface






27. Due to a set of mutually reinforcing processes - climate change appears to be progressing in the arctic more quickly than in any other region on Earth.






28. 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






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






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






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






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






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






34. 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






35. Slow steady decline of about 4% per decade in the total volume of Earth's stratospheric ozone.






36. The transition of a substance from the solid phase directly to the vapor phase - or vice versa - without passing through an intermediate liquid phase.






37. 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%






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






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

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






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






42. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






43. A process whereby slabs of ice at the glacier margin mechanically fracture and detach from the main ice mass -






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






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






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

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






48. Same amount of H2O - Mass does not change - Density of ice < density of water - Volume of ice > volume of water






49. Clouds 40~90% - Vegetation 10~15%






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