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

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2. 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






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






4. 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






5. Greenhouse gases are mixed in the ____






6. Atmosphere retains ____ CO2






7. Total absorbed solar radiation






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






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






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






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






12. 10 : 1 - grounding ; surface






13. Floating extensions are ice shelves - rivers of ice are ice streams or outlet glaciers - the junctions with the ocean are called the grounding line.






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






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






16. Ice sheets have a very ____ Albedo






17. 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.






18. Soil at or below the freezing point of water for two or more years - Can be: Terrestrial - Subsea - Can be: Continuous: exists across a landscape as an unbroken layer. More than 90% is frozen - Discontinuous






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






20. Volcanic eruptions - Sunspots - Wobbly Earth






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






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






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






24. 85%






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






26. On a clear cold day - the thin layer of air hugging the ground is called inversion. This layer is much cooler than the air a few hundred meters above it.






27. Taliks are found under lakes because of the ability of water to store and vertically transfer heat energy - Vertical extent of the taliks found under lakes is related to the depth and volume of the overlying water body.






28. Most of the deserts are around 30 N and 30 S - where sinking air predominates






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






30. The amount of light reflected by an object.






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






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






33. The Earth emits this.






34. Mass balance due to processes that affect the surface of the ice sheet. Precipitation-evapotranspiration-runoff-blowing snow etc...






35. Peru and Ecuador to the equatorial central pacific - Causes irregular warming in sea surface






36. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






37. High vs low






38. Sea ice and continental ice. This is caused by Atmospheric warming triggers.






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






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






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






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






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






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






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






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






47. Permafrost- A frozen soil






48. Ocean retains ____ CO2






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






50. Over the Northern Hemisphere than the tropics.






Can you answer 50 questions in 15 minutes?



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