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. 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






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






3. Taliks are found under lakes because of the ability of water to store and vertically transfer heat energy - Vertical extent of the taliks found under lakes is related to the depth and volume of the overlying water body.






4. 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.






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






6. Ice sheets have a very ____ Albedo






7. Permafrost- A frozen soil






8. 1. Keeps the ocean and the earth cooler 2. Coastal impacts of ice: prevents waves from eroding coastlines and protects from storms. 3. Ecological importance of ice: a. Most visibly for the many fish - birds - and mammal species that live in - on - or






9. 240 w/m squared






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






11. Number of days when temperatures climb above average by a fixed amount.






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






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






14. 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!






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






16. Amount of light absorbed by surface






17. Ice melting rapidly? What type causes sea level to rise? What have been the main contributors to sea level rise so far? What are the impacts of melting ice? - On nature - On humans






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






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






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






21. ~10% of incident solar energy (albedo 90)






22. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






23. 10 : 1 - grounding ; surface






24. Greenhouse gases are mixed in the ____






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






26. Land Based Ecosystems retain ____ CO2.






27. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






28. Descending Air dry - Convection cells are wet.






29. A process whereby slabs of ice at the glacier margin mechanically fracture and detach from the main ice mass -






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






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






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






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






34. Number of days that exceed a given temperature






35. 1. They are the largest contributor to sea level rise 2. Can affect the thermohaline circulation (mainly in Greenland) 3. Are directly connected to climate change






36. High clouds are a ____ feedback; larger greenhouse warming - Clouds reflect shortwave radiation but also absorb longwave radiation






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






38. Changes in the Earth's solar radiation levels can impact the climate. Shortterm warming cycles on Earth.






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






40. 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.






41. This is the total mass change - difference between input and outputs—snow accumulation-ablation.






42. O Unfrozen soil that stays within the permafrost.






43. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






44. How much is the planet really warming?






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






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






47. 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






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






49. 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






50. 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