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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. Ice sheets have a very ____ Albedo






2. Temperature needed to melt at depth is much lower than that needed to melt at the surface.






3. Over the Northern Hemisphere than the tropics.






4. Measures input and output.






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






6. South polar vortex - Temperatures drop below 80O Celsius in the lower stratosphere - At these temperatures the chemicals in the stratosphere freeze and form Polar Stratospheric Clouds (PSCS) - These increase the concentration of CFCs in turn destroyi






7. Precipitation intensity will rise ___ for every 1 OC of warming.






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






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






10. 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






11. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






12. US is responsible for ___ of the total CO2






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






14. Cooler water and drought conditions.






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






16. Antarctica - stratosphere - Sep-Oct






17. Sea ice - Continental ice sheets - Permafrost (frozen soil) - Mountain glaciers - Snow cover






18. 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.






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






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






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






22. 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.






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






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






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






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






27. Descending Air dry - Convection cells are wet.






28. Warming- positive feedback - Cooling- negative feedback.






29. Reduction of Summer Sea- 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 - Snow and snow covered ice absorb 15% of incident solar energy - Ice absorbs 10% of inc






30. Much of the Arctic is overlain by snow and sea ice (land ice and sea ice) - It makes warming a much bigger deal in the Arctic






31. 1. We live in troposphere. Greenhouse gases here warm up the Earth 2. Above stratosphere. The ozone in this layer protects us.






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






33. In average: +1% in respect to 100 years ago.






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






35. 10 : 1 - grounding ; surface






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






37. Less frequent and weaker






38. Longwave radiation - any radiation with a long wave will heat up quickly.






39. Amount of light absorbed by surface






40. Betts et al found that: if CO-2 __________ this has a physiological effect on plant transpiration increased simulated runoff by 6% b. How? i. More CO2 1. Plants pores open less 2. This reduces transpiration 3. More water in the land surface






41. 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.






42. The last portion of a glacier grounded to bedrock - after this line there are ice shelves.






43. 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






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






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






46. Over the past century what has happened to the Earth's temperature?






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






48. High vs low






49. Where do greenhouse gases warm up the Earth?






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







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