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 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.






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






3. Nitrogen (N2 78%) and Oxygen (O2 21%) - Their linear 2 atom molecular structure






4. 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






5. CO2 - CH4 - O3 - H2O - N2O - CFCs






6. Atmosphere retains ____ CO2






7. Number of days that exceed a given temperature






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






9. 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






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






11. 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%






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






13. Amount of light absorbed by surface






14. 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






15. 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.






16. 1.4 USA - 57 m total sea level equivalent






17. 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:






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






19. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






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






21. High vs low






22. An area of unfrozen ground that is open to the ground surface but otherwise enclosed in permafrost.






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






24. The transition of a substance from the solid phase directly to the vapor phase - or vice versa - without passing through an intermediate liquid phase.






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






26. Sea ice extent in Antarctica is rapidly reducing. Seasonal variability. People - Animals and Ice






27. Melting Point decreases






28. Warming- positive feedback - Cooling- negative feedback.






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






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






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






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






33. O Climate change in the Arctic is occurring now - Changes have been huge already






34. 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






35. 240 w/m squared






36. Like weighing oneself on the scale.






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






38. Ice melting rapidly? What type causes sea level to rise? What have been the main contributors to sea level rise so far? What are the impacts of melting ice? - On nature - On humans






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






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






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






42. How often does El Nio occur?






43. Greenhouse gases are mixed in the ____






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

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45. 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






46. ~15% of incident solar energy (albedo 85)






47. In average: +1% in respect to 100 years ago.






48. The amount of light reflected by an object.






49. Occurs when there is not enough water available for a particular crop to grow at a particular time.Typically seen after!meteorological drought (when rainfall decreases) but before a hydrological drought






50. The Earth emits this.