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. Frozen +2 years - Few centimeters to 1500 m






2. 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






3. Massive cooldown has allowed colder conditions to persist leading to cfcs stabilizing leading to ozone depletion. Later - more warming will lead to more moisture in the air which will lead to more snowfall!






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






5. 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






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






7. Amount of light absorbed by surface






8. 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






9. 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.






10. The amount of light reflected by an object.






11. How often does El Nio occur?






12. A thick - floating slab of freshwater ice extending from coast to coast.






13. LW - SW - 55% absorbed by surface






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






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






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






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






18. Descending Air dry - Convection cells are wet.






19. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






20. 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.






21. A mass of land ice - continental or sub-continental in extent - and thick enough to cover most of the underlying bedrock topography - If you have a warm ocean - it will melt the ice sheet. Its shape is mainly determined by the dynamics of its outward






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






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






24. 240 w/m squared






25. 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






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






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

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

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29. 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






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






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






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






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






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






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






36. The Earth emits this.






37. How much is the planet really warming?






38. The heat input is either driven by the 1- thermohaline circulation associated with sea ice formation. The direct influx of intermediate warmth water.






39. 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) -






40. 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.






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






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






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






44. Measures input and output.






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






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






47. O Unfrozen soil that stays within the permafrost.






48. Warming- positive feedback - Cooling- negative feedback.






49. More common






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







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