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. In average: +1% in respect to 100 years ago.






2. 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.






3. Measures input and output.






4. Carbon dioxide - Methane - Ozone - Water Vapor - Few others - Most ___________________ are mixed in the troposphere (Except water vapor) - Water vapor is concentrated closer to the ground.






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






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






7. Is not an externally imposed perturbation to the climate system.






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






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






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






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






12. The buoyant force is equal to the weight of the displaced water.

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






14. Grace - Tells us how much mass change we have - M - This is the measure of gravity (gives us the mass) - Directly measure mass change - Poor resolution






15. Precipitation extremes appear to generally increase across the planet at especially high latitudes.






16. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






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






18. Warming- positive feedback - Cooling- negative feedback.






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






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






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






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






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






24. 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






25. More common






26. Where does the ozone protect us?






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






28. 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) -






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






30. Greenhouse gases are a ___ portion of the atmosphere






31. 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.






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






33. Extent will increase the warming because less energy will be reflected back to the atmosphere by the ice and more will be absorbed by the ocean.






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






35. Heat is provided by outside sources that flow down the continental slope to reach the deepest part of the glacier. High pressure decreases the melting point and favors melting.






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






37. Forms in a mosaic of favoured locations.






38. 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.






39. 1.4 USA - 57 m total sea level equivalent






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






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






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






43. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






44. In ________- inversion layer is more common in the Arctic






45. Due to a set of mutually reinforcing processes - climate change appears to be progressing in the arctic more quickly than in any other region on Earth.






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






47. The past climate...for this reason - both keep good records of climate change.






48. What can cause a change in the Earth's climate balance?






49. Surface Mass Balance is of the order of _____ melting is ____ times more.






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