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






2. Tundra absorbs more energy than ice and snow but less than scrubs and forest - and with those plants migrating towards the north - they will further contribute ot absorb more energy.






3. Where does the ozone protect us?






4. Ocean retains ____ CO2






5. The difference between the incoming radiation energy and the outgoing radiation energy - A measure of the net energy.






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






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






8. 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.






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






10. 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.






11. How often does El Nio occur?






12. 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.






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






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






15. 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.






16. Set up in 1988 by WMO and UNEP.






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






18. 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:






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

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20. Heat is provided by outside sources that flow down the continental slope to reach the deepest part of the glacier. High pressure decreases the melting point and favors melting.






21. Atmosphere retains ____ CO2






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






23. Really measures volume.






24. A mass of land ice - continental or sub-continental in extent - and thick enough to cover most of the underlying bedrock topography - If you have a warm ocean - it will melt the ice sheet. Its shape is mainly determined by the dynamics of its outward






25. O The amount of energy moving in the form of photons or other elementary particles at a certain distance from the source per unit of area per second. Area/second






26. Atmospheric Cooling - Both negative (stabilizing) feedbacks - It is not happening now - but it has happened in the past - Ice-albedo feedback was the dominant feedback during the ice ages.






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






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






29. O Unfrozen soil that stays within the permafrost.






30. Top layer of soil that thaws during the summer and freezes again during autumn. - Between 1 and 3 m thick.






31. Reduction of snow and ice cover - Changes in atmospheric circulation.






32. In troposphere = greenhouse warming gas - However - most of it is in the stratosphere.






33. Is unfrozen ground that is exposed to the ground surface and to a larger mass of unfrozen ground beneath it.






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






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






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






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






38. Antarctica - stratosphere - Sep-Oct






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






40. Grounding line is the last portion of a glacier grounded to bedrock - after this line there are ice shelves - Glaciers contribute to sea level rise after passing the grounding line - Maximum thinning at grounding line.






41. Greenhouse gases are mixed in the ____






42. 240 w/m squared






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






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






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






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






47. LW - SW - 55% absorbed by surface






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






49. 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






50. The warmer the temperature - the deeper the active layer - thaws and refreezes every year - Permafrost below freezing for two or more years.