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. Melting Point decreases






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






3. 240 w/m squared






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






5. Low clouds are a ____ feedback; they will reflect more sunlight. Clouds reflect shortwave radiation but also absorb longwave radiation






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






7. Where do greenhouse gases warm up the Earth?






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






9. LW - SW - 55% absorbed by surface






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






11. Forms in a mosaic of favoured locations.






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






13. CO2 ____ in winter in the NH and ____ decreases during the 'greening season'






14. InSAR - +snow/-ice loss - ice dynamics - requires a lot of data.






15. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






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






17. 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






18. 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






19. ~15% of incident solar energy (albedo 85)






20. 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






21. 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.






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






23. Warming- positive feedback - Cooling- negative feedback.






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






25. 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.






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






27. 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






28. Land Based Ecosystems retain ____ CO2.






29. Water vapor means more water up in the clouds and less in the ground!






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






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






32. Pollution: heat and sunlight cook the air and the chemical compounds which are in it. This combines with the nitrogen oxide and creates 'smog'. This makes breathing difficult for those with respiratory ailments.






33. How often does El Nio occur?






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






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






36. 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






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






38. Permafrost- A frozen soil






39. Radiation absorbed by atmospheric greenhouse gases?






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






41. Grounding line is the last portion of a glacier grounded to bedrock - after this line there are ice shelves - Glaciers contribute to sea level rise after passing the grounding line - Maximum thinning at grounding line.






42. Sea ice and continental ice. This is caused by Atmospheric warming triggers.






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






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






45. The Earth emits this.






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






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






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






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






50. Forms from frozen ocean water - Floats on the ocean surface - Grows over the winter - melts in the summer