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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. Taliks are found under lakes because of the ability of water to store and vertically transfer heat energy - Vertical extent of the taliks found under lakes is related to the depth and volume of the overlying water body.






2. US is responsible for ___ of the total CO2






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






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






5. 10 : 1 - grounding ; surface






6. Trade winds blow from East to West - Pool of warm water in the west - Meanwhile deep colder water rises up in the Eastern Pacific - The sea level is ~ 50-60 cm higher in Western Pacific (Indonesia) than in the Eastern Pacific (South America/Peru) -






7. 1. Keeps the ocean and the earth cooler 2. Coastal impacts of ice: prevents waves from eroding coastlines and protects from storms. 3. Ecological importance of ice: a. Most visibly for the many fish - birds - and mammal species that live in - on - or






8. Surface Mass Balance is of the order of _____ melting is ____ times more.






9. Melting Point decreases






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






11. Over the Northern Hemisphere than the tropics.






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






13. 85%






14. 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.






15. If the Earth is warmer - are we going to have the Hadley cell stronger or weaker? Hotter = heat rises which increases the circulation.






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. Refers to a body of freshwater - usually shallow - formed in a depression by melt water from thawing permafrost.






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






19. 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






20. The amount of light reflected by an object.






21. Rainy on yearly average. In these regions - rising air predominates.






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






23. Thawing permafrost weakens coastal lands. Risk of flooding in coastal wetlands. Pollution and toxins locked in the snow and ice will be released.






24. Same amount of H2O - Mass does not change - Density of ice < density of water - Volume of ice > volume of water






25. Precipitation intensity will rise ___ for every 1 OC of warming.






26. The past climate...for this reason - both keep good records of climate change.






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






28. 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






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






30. SMB- mass balance due to processes that affect the surface of the ice sheet. Precipitation- evapotranspiration-runoff-blowing snow etc.






31. Amount of light absorbed by surface






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

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33. 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






34. 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






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






36. Wet gets _____ - dry gets ____ - Wet - 50ON (sub polar) Canada - N Europe - Russia - Tropical area- monsoon (rainforest) - Drier - Subtropics - Australia - S. Africa - Mediterranean - Caribbean - Mexico - SW US






37. Same as heating an apartment v home - Thinner atmosphere than tropics; warms faster.






38. Antarctica - stratosphere - Sep-Oct






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






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






41. Atmosphere retains ____ CO2






42. How much is the planet really warming?






43. 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






44. Set up in 1988 by WMO and UNEP.






45. Total absorbed solar radiation






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






47. ~15% of incident solar energy (albedo 85)






48. Cooler water and drought conditions.






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






50. In ________- inversion layer is more common in the Arctic







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