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






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. Some parts of the planet are dry because of their location: most of the deserts are around 30 N and 30 S - where sinking air predominates






4. 1. Land usage changes 2. Seasonal timing 3. Rising CO2 levels may be a factor






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






6. Higher temperature increases atmospheric water vapor @ global scale more water vapor in the air that causes nights to stay warmer.






7. Changes in the Earth's solar radiation levels can impact the climate. Shortterm warming cycles on Earth.






8. Greenhouse gases are mixed in the ____






9. 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:






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






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






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






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






14. 1. Altimetry survey 2. Time-variable gravity 3. Ice motion + Regional Climate Modeling






15. 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.






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






17. Antarctica - stratosphere - Sep-Oct






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






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






20. A naturally or artificially caused decrease in the thickness and/or areal extent of permafrost - It is caused by the deepening fo the active layer and the thawing of the adjacent permafrost.






21. 85%






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






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






24. Number of days that exceed a given temperature






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






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






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






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






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






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






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






32. All processes that add snow or ice to a glacier or to flowing ice or snow cover.






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






34. 240 w/m squared






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






36. Frozen +2 years - Few centimeters to 1500 m






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






38. 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






39. 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






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






41. 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






42. Refers to the irregular warming in the Sea Surface Temperatures (SST) from the coasts of Peru and Ecuador to the equatorial central Pacific - the Southern Oscillation






43. Reduction of Summer Sea- 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 - Snow and snow covered ice absorb 15% of incident solar energy - Ice absorbs 10% of inc






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






45. 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.






46. Atmosphere retains ____ CO2






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






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






49. How much is the planet really warming?






50. Total absorbed solar radiation