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






2. 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.






3. 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.






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






5. Precipitation extremes appear to generally increase across the planet at especially high latitudes.






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






7. Ice flowing from the middle of Greenland to the edges and melting. 90 feet a day- speed that ice is moving.






8. 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






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

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10. The Earth emits this.






11. Atmosphere retains ____ CO2






12. Permafrost- A frozen soil






13. Greenhouse gases are a ___ portion of the atmosphere






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






15. 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.






16. 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.






17. High vs low






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






19. Where does the ozone protect us?






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






21. Set up in 1988 by WMO and UNEP.






22. Where do greenhouse gases warm up the Earth?






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






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






25. 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.






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






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






28. Antarctica - stratosphere - Sep-Oct






29. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






30. How much is the planet really warming?






31. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






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






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






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






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






36. More common






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






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






40. O Unfrozen soil that stays within the permafrost.






41. Pockets of ice in the topmost permafrost caused by thawing which create an underground lake.






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






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






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






45. Concentration of 380 ppmv - Have risen about 40% - Preindustrial~ 270~280 ppmv






46. 1.4 USA - 57 m total sea level equivalent






47. 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.






48. Massive cooldown has allowed colder conditions to persist leading to cfcs stabilizing leading to ozone depletion. Later - more warming will lead to more moisture in the air which will lead to more snowfall!






49. Extent will increase the warming because less energy will be reflected back to the atmosphere by the ice and more will be absorbed by the ocean.






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