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






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






3. Radiation absorbed by atmospheric greenhouse gases?






4. The Earth emits this.






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






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






7. Changes over time in the highest and lowest single temperature observed during a given month of the year.






8. Number of days that exceed a given temperature






9. 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.






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






11. 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






12. Number of days when temperatures climb above average by a fixed amount.






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






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






15. Troposphere - Stratosphere (Ozone Layer) - Mesosphere - Ionosphere






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






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






18. Low clouds are a ____ feedback; they will reflect more sunlight. Clouds reflect shortwave radiation but also absorb longwave radiation






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






20. Refers to the irregular warming in the Sea Surface Temperatures (SST) from the coasts of Peru and Ecuador to the equatorial central Pacific - the Southern Oscillation






21. 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






22. 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






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






24. The land-surface configuration that results from the melting of ground ice in a region where permafrost degrades is called Thermokarst.






25. 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






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






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






28. 1. Altimetry survey 2. Time-variable gravity 3. Ice motion + Regional Climate Modeling






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






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






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






32. 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!






33. 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.






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






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






36. Ocean retains ____ CO2






37. Reduction of snow and ice cover - Changes in atmospheric circulation.






38. Rainy on yearly average. In these regions - rising air predominates.






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






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

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41. Changes in the Earth's solar radiation levels can impact the climate. Shortterm warming cycles on Earth.






42. Arctic warms faster than other parts of the globe in response to a given increase in greenhouse gasses - More direct route to warming - In the Arctic a greater fraction of any increase in radiation absorbed by the surface goes directly into warming t






43. Set up in 1988 by WMO and UNEP.






44. Ice melting rapidly? What type causes sea level to rise? What have been the main contributors to sea level rise so far? What are the impacts of melting ice? - On nature - On humans






45. High vs low






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






47. Land Based Ecosystems retain ____ CO2.






48. Greenhouse gases are a ___ portion of the atmosphere






49. Really measures volume.






50. 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.