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. Average molecular life span is less than 10 years - Major sources: Wetlands and oceans - Raising cattle and landfills.






2. 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.






3. Over the Northern Hemisphere than the tropics.






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






5. 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






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






7. Holds unique and key information - Are highly interconnected - Respond and drive climate change - Are the largest freshwater reservoirs of the planet - Ice cores tell us that in climate records - nothing is regular and ice sheet plays major role.






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






9. How much is the planet really warming?






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






11. ~15% of incident solar energy (albedo 85)






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






13. ~10% of incident solar energy (albedo 90)






14. Really measures volume.






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






16. If the mean annual air temperature is only slightly below 0 degrees C - permafrost will form only in spots that are sheltered.






17. 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






18. The amount of light reflected by an object.






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






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






21. 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.






22. Cooler water and drought conditions.






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






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

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25. Prolonged period of excessively hot weather - Which may be accompanied by high humidity.






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






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






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






29. 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.






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






31. Where does the ozone protect us?






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






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






34. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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35. They saw a massive thinning of the ice where it enters into the ocean - This is due to the pronounced melting of the ice once it is in contact with the ocean. Melt rates of 25 m/year near the grounding lines and more than 10 m/year on average.






36. 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:






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






38. Permafrost- A frozen soil






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






40. Absolute thresholds - Monthly maximums and minimums - Threshold departures - Percentile departure - Atmospheric Water Vapor: More water vapor in the air - warmer nights!






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






42. Like weighing oneself on the scale.






43. 10 : 1 - grounding ; surface






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






45. The land-surface configuration that results from the melting of ground ice in a region where permafrost degrades is called Thermokarst.






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






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






48. At the bottom of the ice sheets the temperature doesn't necessarily have to be above 0... it could _____ more easily because of the water






49. Total absorbed solar radiation






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






Can you answer 50 questions in 15 minutes?



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