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


2. Same as heating an apartment v home - Thinner atmosphere than tropics; warms faster.






3. Water vapor means more water up in the clouds and less in the ground!






4. Laser radar - H V - Long time series - high accuracy - Density






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






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






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






8. LW - SW - 55% absorbed by surface






9. Number of days that exceed a given temperature






10. 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






11. Really measures volume.






12. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






13. The Earth emits this.






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






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






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






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






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






19. The amount of light reflected by an object.






20. Melting Point decreases






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






22. 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.






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






24. Forms in a mosaic of favoured locations.






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






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






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






28. 1.4 USA - 57 m total sea level equivalent






29. InSAR - +snow/-ice loss - ice dynamics - requires a lot of data.






30. Greenhouse gases are a ___ portion of the atmosphere






31. Arctic warms faster than other parts of the globe in response to a given increase in greenhouse gasses - More direct route to warming - In the Arctic a greater fraction of any increase in radiation absorbed by the surface goes directly into warming t






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






33. 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.






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






35. 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






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






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






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






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






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






41. 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






42. 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






43. 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






44. 240 w/m squared






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






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






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






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






49. 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.






50. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.