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






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






3. Melting Point decreases






4. US is responsible for ___ of the total CO2






5. Antarctica - stratosphere - Sep-Oct






6. Less frequent and weaker






7. Climate models suggest once the sea ice cover is thinned sufficiently - a strong kick from natural variability could initiate a rapid slide towards ice-free conditions in the summer.






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






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






10. Sea ice extent in Antarctica is rapidly reducing. Seasonal variability. People - Animals and Ice






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






12. Radiation absorbed by atmospheric greenhouse gases?






13. Set up in 1988 by WMO and UNEP.






14. SALTY WATER = MORE DENSE - Maximum density at 4OC - This is why ice melting is a big deal; if the whole circle slows down - Ice bergs are fresh water higher sea level rise.






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






16. 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:






17. ~15% of incident solar energy (albedo 85)






18. 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






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






20. Over the Northern Hemisphere than the tropics.






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






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






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






24. 85%






25. 1.4 USA - 57 m total sea level equivalent






26. 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






27. Pollution: heat and sunlight cook the air and the chemical compounds which are in it. This combines with the nitrogen oxide and creates 'smog'. This makes breathing difficult for those with respiratory ailments.






28. How much is the planet really warming?






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






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






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






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






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






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






35. Land Based Ecosystems retain ____ CO2.






36. Total absorbed solar radiation






37. x7 smaller - 7m total sea level equivalent.






38. 1. They are the largest contributor to sea level rise 2. Can affect the thermohaline circulation (mainly in Greenland) 3. Are directly connected to climate change






39. 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






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






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






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






43. The Earth emits this.






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






45. Like weighing oneself on the scale.






46. 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.






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






48. A naturally or artificially caused decrease in the thickness and/or areal extent of permafrost - It is caused by the deepening fo the active layer and the thawing of the adjacent permafrost.






49. Greenhouse gases are mixed in the ____






50. The amount of light reflected by an object.