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. Total absorbed solar radiation






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






3. Greenhouse gases are mixed in the ____






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






5. Forms in a mosaic of favoured locations.






6. ~10% of incident solar energy (albedo 90)






7. Over the Northern Hemisphere than the tropics.






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






9. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






10. Poor resolution (200-400 km) does not allow us to distinguish glaciers and basins.






11. 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






12. 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.






13. More common






14. Number of days when temperatures climb above average by a fixed amount.






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






16. 85%






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






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






19. The air can hold less water vapor - Consequently - less water can be evaporated in the air - and only a small portion of energy is used in this process - Most of the energy that reaches the Arctic goes directly into warming the air






20. Descending Air dry - Convection cells are wet.






21. Less frequent and weaker






22. InSAR - +snow/-ice loss - ice dynamics - requires a lot of data.






23. ~15% of incident solar energy (albedo 85)






24. Warming- positive feedback - Cooling- negative feedback.






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






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






27. Changes over time in the highest and lowest single temperature observed during a given month of the year.






28. Greenhouse gases are a ___ portion of the atmosphere






29. 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






30. Antarctica - stratosphere - Sep-Oct






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






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






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






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






35. 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






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






37. 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.






38. 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.






39. Where do greenhouse gases warm up the Earth?






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






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






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

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






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






45. 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






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






47. Over the past century what has happened to the Earth's temperature?






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






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






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