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






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






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






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






5. ~10% of incident solar energy (albedo 90)






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






7. Forms in a mosaic of favoured locations.






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






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






10. 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






11. 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






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






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






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






15. 1.4 USA - 57 m total sea level equivalent






16. The large-scale ocean circulation that moves water between the deep and surface ocean which effects salinity and temperature change - Supplies heat to the polar-regions.






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






18. Where does the ozone protect us?






19. Radiation that comes from the Sun - Visible light - 'near infrared' - ultraviolet radiation.






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






21. 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






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






23. 85%






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






25. Much of the Arctic is overlain by snow and sea ice (land ice and sea ice) - It makes warming a much bigger deal in the Arctic






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






27. 240 w/m squared






28. Ice sheets have a very ____ Albedo






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






30. Long time series started in the '70s and yielding good data in the '90s - Detects elevation with high accuracy: 10 cm precision (laser) to 1 m (radar) - 2/3 Gravity Surveys (GRACE) - Weighing the total mass every 30 days - Direct monthly estimate






31. High vs low






32. 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:






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






34. Land Based Ecosystems retain ____ CO2.






35. 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.






36. ~15% of incident solar energy (albedo 85)






37. Is defined usually on the basis of the degree of dryness (in comparison to some 'normal' or average amount






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






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






40. Amount of light absorbed by atmosphere






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






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






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






44. 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






45. 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.






46. 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.






47. 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






48. 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






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






50. US is responsible for ___ of the total CO2







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