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. 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






2. LW - SW - 55% absorbed by surface






3. Is best viewed as a combination of...- Natural Variability - Associated with atmospheric circulation patterns - Growing Radiative Forcing - Associated with rising concentrations of atmospheric greenhouse gases - Strongly suggests a human influence.






4. Number of days that exceed a given temperature






5. 10 : 1 - grounding ; surface






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






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






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






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






10. Melting Point decreases






11. When inversion breaks up _______________. - Consequently - anything that breaks inversions or makes them form less often could produce major ground level warming.






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






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






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






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






16. High clouds are a ____ feedback; larger greenhouse warming - Clouds reflect shortwave radiation but also absorb longwave radiation






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






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






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






20. Where do greenhouse gases warm up the Earth?






21. Land Based Ecosystems retain ____ CO2.






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






23. Amount of light absorbed by surface






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






25. 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






26. They saw a massive thinning of the ice where it enters into the ocean - This is due to the pronounced melting of the ice once it is in contact with the ocean. Melt rates of 25 m/year near the grounding lines and more than 10 m/year on average.






27. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






28. The air can hold less water vapor - Consequently - less water can be evaporated in the air - and only a small portion of energy is used in this process - Most of the energy that reaches the Arctic goes directly into warming the air






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






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






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






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






33. 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






34. Amount of light absorbed by atmosphere






35. Atmospheric Cooling - Both negative (stabilizing) feedbacks - It is not happening now - but it has happened in the past - Ice-albedo feedback was the dominant feedback during the ice ages.






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






37. 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






38. Industrial product - 300 ppb (parts per billion)






39. SMB- mass balance due to processes that affect the surface of the ice sheet. Precipitation- evapotranspiration-runoff-blowing snow etc.






40. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






41. Help darkens the snow and ice surface - increasing the amount of energy that is absorbed.






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






43. A climate forcing agent formed through the incomplete combustion of fossil fuels - biofuel - and biomass; emitted both anthropogenic:ally and naturally.






44. 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.






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






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






47. The amount of light reflected by an object.






48. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






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






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