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






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






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






4. Industry 40% - Buildings 31% - Transportations 22% - Agriculture 4%






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






6. ~15% of incident solar energy (albedo 85)






7. Total absorbed solar radiation






8. Permafrost- A frozen soil






9. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






10. 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) -






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






12. 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






13. Like weighing oneself on the scale.






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






15. Less frequent and weaker






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






17. 240 w/m squared






18. Number of days that land among the hottest of all days in that month's long-term record.






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






20. Ice flowing from the middle of Greenland to the edges and melting. 90 feet a day- speed that ice is moving.






21. 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






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






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






24. The amount of light reflected by an object.






25. 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






26. Is not an externally imposed perturbation to the climate system.






27. High cloud has a _____ effect and cool cloud has a ____ effect






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






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






30. 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.






31. Where do greenhouse gases warm up the Earth?






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






33. Is defined usually on the basis of the degree of dryness (in comparison to some 'normal' or average amount






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






35. The Earth emits this.






36. Sea ice extent in Antarctica is rapidly reducing. Seasonal variability. People - Animals and Ice






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






38. Amount of light absorbed by surface






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

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






41. 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






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






43. Melting Point decreases






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






45. Really measures volume.






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






47. Over the Northern Hemisphere than the tropics.






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






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






50. 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