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. 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.






2. 1. We live in troposphere. Greenhouse gases here warm up the Earth 2. Above stratosphere. The ozone in this layer protects us.






3. The amount of light reflected by an object.






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






5. 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






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






7. Descending Air dry - Convection cells are wet.






8. Taliks are found under lakes because of the ability of water to store and vertically transfer heat energy - Vertical extent of the taliks found under lakes is related to the depth and volume of the overlying water body.






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






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






11. 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.






12. How much is the planet really warming?






13. How often does El Nio occur?






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






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






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






17. Land Based Ecosystems retain ____ CO2.






18. Really measures volume.






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






20. Under higher pressure the melting point decreases ____ - The pressure comes from the weight of the ice shelf.






21. 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.






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






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






24. A thick - floating slab of freshwater ice extending from coast to coast.






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






26. 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






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






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






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






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






31. 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






32. Precipitation intensity will rise ___ for every 1 OC of warming.






33. 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.






34. 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






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






36. If the Earth is warmer - are we going to have the Hadley cell stronger or weaker? Hotter = heat rises which increases the circulation.






37. US is responsible for ___ of the total CO2






38. Antarctica - stratosphere - Sep-Oct






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






40. Like weighing oneself on the scale.






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






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






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






44. Amount of light absorbed by surface






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






46. LW - SW - 55% absorbed by surface






47. 240 w/m squared






48. A process whereby slabs of ice at the glacier margin mechanically fracture and detach from the main ice mass -






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






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