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. High vs low






2. Low clouds are a ____ feedback; they will reflect more sunlight. Clouds reflect shortwave radiation but also absorb longwave radiation






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

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4. Really measures volume.






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






6. Massive cooldown has allowed colder conditions to persist leading to cfcs stabilizing leading to ozone depletion. Later - more warming will lead to more moisture in the air which will lead to more snowfall!






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






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






9. Water vapor means more water up in the clouds and less in the ground!






10. 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.






11. More common






12. The amount of light reflected by an object.






13. Radiation absorbed by atmospheric greenhouse gases?






14. 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






15. Summer increase in cloud cover - Winter decrease in cloud cover.

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16. 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






17. 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






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






19. 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






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






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






22. O Unfrozen soil that stays within the permafrost.






23. 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.






24. Ice sheets have a very ____ Albedo






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






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






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






28. Longwave radiation - any radiation with a long wave will heat up quickly.






29. They saw a massive thinning of the ice where it enters into the ocean - This is due to the pronounced melting of the ice once it is in contact with the ocean. Melt rates of 25 m/year near the grounding lines and more than 10 m/year on average.






30. Greenhouse gases are mixed in the ____






31. LW - SW - 55% absorbed by surface






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






33. 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






34. Atmospheric Cooling - Both negative (stabilizing) feedbacks - It is not happening now - but it has happened in the past - Ice-albedo feedback was the dominant feedback during the ice ages.






35. Laser radar - H V - Long time series - high accuracy - Density






36. Less frequent and weaker






37. ~10% of incident solar energy (albedo 90)






38. 1. Keeps the ocean and the earth cooler 2. Coastal impacts of ice: prevents waves from eroding coastlines and protects from storms. 3. Ecological importance of ice: a. Most visibly for the many fish - birds - and mammal species that live in - on - or






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






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






41. At the bottom of the ice sheets the temperature doesn't necessarily have to be above 0... it could _____ more easily because of the water






42. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






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






44. Grounding line is the last portion of a glacier grounded to bedrock - after this line there are ice shelves - Glaciers contribute to sea level rise after passing the grounding line - Maximum thinning at grounding line.






45. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






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






47. Volcanic eruptions - Sunspots - Wobbly Earth






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






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






50. How often does El Nio occur?






Can you answer 50 questions in 15 minutes?



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