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. 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






2. 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.






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






4. Reduction of snow and ice cover - Changes in atmospheric circulation.






5. Just remember the general direction of the circulation - Rising northern pacific. You start in between Greenland and Europe (youngest water) - Oldest water is in the Pacific Ocean - Salty water> fresh water - Cold Water > Warm Water






6. Where does the ozone protect us?






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






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






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






10. Where do greenhouse gases warm up the Earth?






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






12. Permafrost- A frozen soil






13. ~15% of incident solar energy (albedo 85)






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






15. How much is the planet really warming?






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






17. Holds unique and key information - Are highly interconnected - Respond and drive climate change - Are the largest freshwater reservoirs of the planet - Ice cores tell us that in climate records - nothing is regular and ice sheet plays major role.






18. 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.






19. 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.






20. 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.






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






22. Amount of light absorbed by surface






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






24. Most of the deserts are around 30 N and 30 S - where sinking air predominates






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






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






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






28. A climate forcing agent formed through the incomplete combustion of fossil fuels - biofuel - and biomass; emitted both anthropogenic:ally and naturally.






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






30. Really measures volume.






31. Ice sheets have a very ____ Albedo






32. O Unfrozen soil that stays within the permafrost.






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






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






35. 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:






36. Like weighing oneself on the scale.






37. 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






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






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






40. Ocean retains ____ CO2






41. Heat is provided by outside sources that flow down the continental slope to reach the deepest part of the glacier. High pressure decreases the melting point and favors melting.






42. 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%






43. Volcanic eruptions - Sunspots - Wobbly Earth






44. 1. Altimetry survey 2. Time-variable gravity 3. Ice motion + Regional Climate Modeling






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






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






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






48. CO2 GHG forcing - H2O - dominant/major GHG






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






50. Less frequent and weaker