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. CO2 GHG forcing - H2O - dominant/major GHG






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






3. Over the past century what has happened to the Earth's temperature?






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






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






6. Total absorbed solar radiation






7. Atmosphere retains ____ CO2






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






9. Set up in 1988 by WMO and UNEP.






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






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






12. The amount of light reflected by an object.






13. 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.






14. Under higher pressure the melting point decreases ____ - The pressure comes from the weight of the ice shelf.






15. 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






16. 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.






17. Forms in a mosaic of favoured locations.






18. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






19. Number of days that land among the hottest of all days in that month's long-term record.






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






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






22. Descending Air dry - Convection cells are wet.






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






24. he increase of ozone concentration in the atmosphere helps ____ our planet






25. Radiation absorbed by atmospheric greenhouse gases?






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






27. Warming- positive feedback - Cooling- negative feedback.






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






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






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






31. 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) -






32. Land Based Ecosystems retain ____ CO2.






33. Melting Point decreases






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






35. 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






36. O Unfrozen soil that stays within the permafrost.






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






38. 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






39. Reduction of Summer Sea- 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 - Snow and snow covered ice absorb 15% of incident solar energy - Ice absorbs 10% of inc






40. 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






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






42. 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%






43. US is responsible for ___ of the total CO2






44. Occurs when there is not enough water available for a particular crop to grow at a particular time.Typically seen after!meteorological drought (when rainfall decreases) but before a hydrological drought






45. 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






46. O Climate change in the Arctic is occurring now - Changes have been huge already






47. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






48. Where do greenhouse gases warm up the Earth?






49. Number of days that exceed a given temperature






50. Deep tropics between 15O N and 15 O S are quite rainy on yearly average. In these regions - rising air predominates.