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






2. High vs low






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






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






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






6. Is not an externally imposed perturbation to the climate system.






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






8. ~15% of incident solar energy (albedo 85)






9. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






10. Precipitation extremes appear to generally increase across the planet at especially high latitudes.






11. 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






12. 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






13. 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






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






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






16. Greenhouse gases are mixed in the ____






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






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






19. O Unfrozen soil that stays within the permafrost.






20. The Earth emits this.






21. Melting Point decreases






22. Arctic troposphere is thinner (8-10 km) than the tropics...The depth of the atmospheric layer is much shallower in the Arctic - It takes less energy to warm the Arctic rather than the Tropics - Same as heating an apartment vs. a house






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






24. Over the Northern Hemisphere than the tropics.






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






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






27. Radiation absorbed by atmospheric greenhouse gases?






28. 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.






29. Warming- positive feedback - Cooling- negative feedback.






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






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






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






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






34. 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






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






36. The amount of light reflected by an object.






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






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






39. Set up in 1988 by WMO and UNEP.






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






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






42. Greenhouse gases are a ___ portion of the atmosphere






43. 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.






44. Absolute thresholds - Monthly maximums and minimums - Threshold departures - Percentile departure - Atmospheric Water Vapor: More water vapor in the air - warmer nights!






45. More common






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






47. Carbon dioxide - Methane - Ozone - Water Vapor - Few others - Most ___________________ are mixed in the troposphere (Except water vapor) - Water vapor is concentrated closer to the ground.






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






49. Sea ice - Glaciers and Ice sheets - Alaska- ice glaciers - Greenland- ice sheets






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







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