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






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






3. Help darkens the snow and ice surface - increasing the amount of energy that is absorbed.






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






5. The transition of a substance from the solid phase directly to the vapor phase - or vice versa - without passing through an intermediate liquid phase.






6. 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






7. 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:






8. Just remember the general direction of the circulation - Rising northern pacific. You start in between Greenland and Europe (youngest water) - Oldest water is in the Pacific Ocean - Salty water> fresh water - Cold Water > Warm Water






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






10. 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






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






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

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






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






15. 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






16. Industry 40% - Buildings 31% - Transportations 22% - Agriculture 4%






17. x7 smaller - 7m total sea level equivalent.






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






19. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






20. Hydrological drought is associated with the effect of low rainfall on water levels in rivers -!reservoirs -!lakes and aquifers.






21. Radiation absorbed by atmospheric greenhouse gases?






22. Tundra absorbs more energy than ice and snow but less than scrubs and forest - and with those plants migrating towards the north - they will further contribute ot absorb more energy.






23. 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






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






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






26. LW - SW - 55% absorbed by surface






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






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






29. Volcanic eruptions - Sunspots - Wobbly Earth






30. The past climate...for this reason - both keep good records of climate change.






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






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






33. Warming- positive feedback - Cooling- negative feedback.






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






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






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






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






38. Atmosphere retains ____ CO2






39. Due to a set of mutually reinforcing processes - climate change appears to be progressing in the arctic more quickly than in any other region on Earth.






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






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






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






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






44. Melting Point decreases






45. How much is the planet really warming?






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






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






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






49. Betts et al found that: if CO-2 __________ this has a physiological effect on plant transpiration increased simulated runoff by 6% b. How? i. More CO2 1. Plants pores open less 2. This reduces transpiration 3. More water in the land surface






50. Total absorbed solar radiation