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






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






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






4. Is best viewed as a combination of...- Natural Variability - Associated with atmospheric circulation patterns - Growing Radiative Forcing - Associated with rising concentrations of atmospheric greenhouse gases - Strongly suggests a human influence.






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






6. Sea ice - Continental ice sheets - Permafrost (frozen soil) - Mountain glaciers - Snow cover






7. More common






8. Ozone layer in high stratosphere (25-40 km altitude) absorbs about 95-99% of ultraviolet radiation.






9. Industrial product - 300 ppb (parts per billion)






10. 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






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






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






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






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






15. Greenhouse gases are mixed in the ____






16. 85%






17. 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






18. 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






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






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






21. 10 : 1 - grounding ; surface






22. The warmer the temperature - the deeper the active layer - thaws and refreezes every year - Permafrost below freezing for two or more years.






23. Total absorbed solar radiation






24. Warming- positive feedback - Cooling- negative feedback.






25. Amount of light absorbed by surface






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






27. 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.






28. 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






29. Like weighing oneself on the scale.






30. Descending Air dry - Convection cells are wet.






31. A dome shaped cover of perennial ice and snow.






32. Number of days that exceed a given temperature






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






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






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






36. 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






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






38. 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.






39. 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.






40. US is responsible for ___ of the total CO2






41. 240 w/m squared






42. Permafrost- A frozen soil






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






44. The amount of light reflected by an object.






45. Fresh snow and snow-covered sea ice may have an albedo higher than 80% - even when melting in the summer. Sea ice has a higher albedo and can absorb as little as 10% of the solar energy. On average - sea ice albedo is around 85%






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






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






48. 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






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






50. Mass balance due to processes that affect the surface of the ice sheet. Precipitation-evapotranspiration-runoff-blowing snow etc...