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






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






3. ~15% of incident solar energy (albedo 85)






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






5. 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






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






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






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






10. LW - SW - 55% absorbed by surface






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






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






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






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






15. The Day After Tomorrow - Circulation will slow by 10% to 50% in the next century






16. 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.






17. 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.






18. Climate models suggest once the sea ice cover is thinned sufficiently - a strong kick from natural variability could initiate a rapid slide towards ice-free conditions in the summer.






19. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






20. Amount of light absorbed by surface






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






22. Like weighing oneself on the scale.






23. SALTY WATER = MORE DENSE - Maximum density at 4OC - This is why ice melting is a big deal; if the whole circle slows down - Ice bergs are fresh water higher sea level rise.






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






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






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






27. Total absorbed solar radiation






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






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






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






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






32. Unfrozen ground that is found within a mass of permafrost






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






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






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






36. 1. We live in troposphere. Greenhouse gases here warm up the Earth 2. Above stratosphere. The ozone in this layer protects us.






37. Soil at or below the freezing point of water for two or more years - Can be: Terrestrial - Subsea - Can be: Continuous: exists across a landscape as an unbroken layer. More than 90% is frozen - Discontinuous






38. 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






39. Melting Point decreases






40. The Earth emits this.






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






42. How often does El Nio occur?






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






44. Ice sheets have a very ____ Albedo






45. Number of days that exceed a given temperature






46. ~10% of incident solar energy (albedo 90)






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






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






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

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