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. At the bottom of the ice sheets the temperature doesn't necessarily have to be above 0... it could _____ more easily because of the water






2. Set up in 1988 by WMO and UNEP.






3. 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.






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






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






6. 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






7. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






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






9. Really measures volume.






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






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






12. More common






13. Ocean retains ____ CO2






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






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






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






17. The amount of light reflected by an object.






18. The air can hold less water vapor - Consequently - less water can be evaporated in the air - and only a small portion of energy is used in this process - Most of the energy that reaches the Arctic goes directly into warming the air






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






20. Measures input and output.






21. Less frequent and weaker






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






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






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






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






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






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

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






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






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






31. Same amount of H2O - Mass does not change - Density of ice < density of water - Volume of ice > volume of water






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






33. 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.






34. Permafrost- A frozen soil






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






36. 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.






37. Descending Air dry - Convection cells are wet.






38. Changes over time in the highest and lowest single temperature observed during a given month of the year.






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






40. 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






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






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






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






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






45. 10 : 1 - grounding ; surface






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






47. Positive Albedo Feedback - increase in temperature melts ice and snow reduces albedo increases temperature melts ice and snow reduces albedo... ETC






48. Warming- positive feedback - Cooling- negative feedback.






49. Slow steady decline of about 4% per decade in the total volume of Earth's stratospheric ozone.






50. 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