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






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






3. Cooler water and drought conditions.






4. The major distinction between the Protocol and the Convention is that while the Convention encouraged industrialized countries to stabilize GHG emissions - the Protocol commits them to do so.






5. CO2 GHG forcing - H2O - dominant/major GHG






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






7. Like weighing oneself on the scale.






8. 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.






9. Antarctica - stratosphere - Sep-Oct






10. Radiation absorbed by atmospheric greenhouse gases?






11. Melting Point decreases






12. Frozen +2 years - Few centimeters to 1500 m






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






14. Permafrost- A frozen soil






15. Forms from frozen ocean water - Floats on the ocean surface - Grows over the winter - melts in the summer






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






17. 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






18. 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






19. Greenhouse gases are a ___ portion of the atmosphere






20. 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






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






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






23. The high pressure decreases the melting point and favors melting - Melt water being less dense rises along the water column along the ice shelf bottom and may either escape the cavity or refreeze at some intermediate depth. Melting point decreases:






24. Water vapor - 36-70% - carbon dioxide - 9-26% - methane - 4-9% - ozone - 3-7%






25. Unfrozen ground that is found within a mass of permafrost






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






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






28. Wet gets _____ - dry gets ____ - Wet - 50ON (sub polar) Canada - N Europe - Russia - Tropical area- monsoon (rainforest) - Drier - Subtropics - Australia - S. Africa - Mediterranean - Caribbean - Mexico - SW US






29. Fresh snow and snow-covered sea ice may have an albedo higher than 80% - even when melting in the summer. Sea ice has a higher albedo and can absorb as little as 10% of the solar energy. On average - sea ice albedo is around 85%






30. 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) -






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






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






33. CO2 - CH4 - O3 - H2O - N2O - CFCs






34. US is responsible for ___ of the total CO2






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






36. The amount of light reflected by an object.






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






38. Really measures volume.






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






40. ~15% of incident solar energy (albedo 85)






41. If the mean annual air temperature is only slightly below 0 degrees C - permafrost will form only in spots that are sheltered.






42. Ice sheets have a very ____ Albedo






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






44. 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.






45. More common






46. Pockets of ice in the topmost permafrost caused by thawing which create an underground lake.






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






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






49. LW - SW - 55% absorbed by surface






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