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. Absolute thresholds - Monthly maximums and minimums - Threshold departures - Percentile departure - Atmospheric Water Vapor: More water vapor in the air - warmer nights!






2. If the Earth is warmer - are we going to have the Hadley cell stronger or weaker? Hotter = heat rises which increases the circulation.






3. Melting Point decreases






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






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






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






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






8. All processes that add snow or ice to a glacier or to flowing ice or snow cover.






9. 240 w/m squared






10. Massive cooldown has allowed colder conditions to persist leading to cfcs stabilizing leading to ozone depletion. Later - more warming will lead to more moisture in the air which will lead to more snowfall!






11. 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






12. 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






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






14. Over the Northern Hemisphere than the tropics.






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






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






17. Forms in a mosaic of favoured locations.






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






19. 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






20. Thawing permafrost weakens coastal lands. Risk of flooding in coastal wetlands. Pollution and toxins locked in the snow and ice will be released.






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






22. Ice sheets have a very ____ Albedo






23. Land Based Ecosystems retain ____ CO2.






24. 85%






25. 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






26. How often does El Nio occur?






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






28. ~10% of incident solar energy (albedo 90)






29. O Unfrozen soil that stays within the permafrost.






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






31. 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.






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






33. 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






34. Less frequent and weaker






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






36. Amount of light absorbed by surface






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






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






39. LW - SW - 55% absorbed by surface






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






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






42. Holds unique and key information - Are highly interconnected - Respond and drive climate change - Are the largest freshwater reservoirs of the planet - Ice cores tell us that in climate records - nothing is regular and ice sheet plays major role.






43. High vs low






44. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






45. Radiation absorbed by atmospheric greenhouse gases?






46. Rainy on yearly average. In these regions - rising air predominates.






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

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48. 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.






49. An area of unfrozen ground that is open to the ground surface but otherwise enclosed in permafrost.






50. 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.