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






2. How much is the planet really warming?






3. Summer increase in cloud cover - Winter decrease in cloud cover.

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






5. 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






6. ~10% of incident solar energy (albedo 90)






7. LW - SW - 55% absorbed by surface






8. Temperature needed to melt at depth is much lower than that needed to melt at the surface.






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






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






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






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






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






14. The order of 1 m/year. Melting is ten times more.






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






16. 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






17. Changes over time in the highest and lowest single temperature observed during a given month of the year.






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






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






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






21. Over the past century what has happened to the Earth's temperature?






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






23. Volcanic eruptions - Sunspots - Wobbly Earth






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






25. 10 : 1 - grounding ; surface






26. Carbon dioxide - Methane - Ozone - Water Vapor - Few others - Most ___________________ are mixed in the troposphere (Except water vapor) - Water vapor is concentrated closer to the ground.






27. 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.






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






29. The major distinction between the Protocol and the Convention is that while the Convention encouraged industrialized countries to stabilize GHG emissions - the Protocol commits them to do so.






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






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






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






33. 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






34. Is defined usually on the basis of the degree of dryness (in comparison to some 'normal' or average amount






35. 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






36. 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.






37. Where do greenhouse gases warm up the Earth?






38. 85%






39. When inversion breaks up _______________. - Consequently - anything that breaks inversions or makes them form less often could produce major ground level warming.






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






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






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






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






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






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






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






47. When meltwater seeps through a flowing glacier - it can lubricate the base and hasten the glacier's seaward flow.






48. 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%






49. 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) -






50. Measures input and output.