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






2. Cooler water and drought conditions.






3. 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.






4. 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






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






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






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






8. 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






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






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






11. 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.






12. CO2 ____ in winter in the NH and ____ decreases during the 'greening season'






13. The heat input is either driven by the 1- thermohaline circulation associated with sea ice formation. The direct influx of intermediate warmth water.






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






15. Reduction of snow and ice cover - Changes in atmospheric circulation.






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






17. 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.






18. Refers to a body of freshwater - usually shallow - formed in a depression by melt water from thawing permafrost.






19. 1. Altimetry survey 2. Time-variable gravity 3. Ice motion + Regional Climate Modeling






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






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






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






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






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






25. Number of days that exceed a given temperature






26. Ocean retains ____ CO2






27. Summer increase in cloud cover - Winter decrease in cloud cover.

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28. Some parts of the planet are dry because of their location: most of the deserts are around 30 N and 30 S - where sinking air predominates






29. The amount of light reflected by an object.






30. 1. Land usage changes 2. Seasonal timing 3. Rising CO2 levels may be a factor






31. ~15% of incident solar energy (albedo 85)






32. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






33. South polar vortex - Temperatures drop below 80O Celsius in the lower stratosphere - At these temperatures the chemicals in the stratosphere freeze and form Polar Stratospheric Clouds (PSCS) - These increase the concentration of CFCs in turn destroyi






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






35. 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.






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






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

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






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






40. Radiation absorbed by atmospheric greenhouse gases?






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






42. 85%






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






44. Troposphere - Stratosphere (Ozone Layer) - Mesosphere - Ionosphere






45. 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.






46. US is responsible for ___ of the total CO2






47. Ice sheets have a very ____ Albedo






48. 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:






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






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







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