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






2. 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.






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






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






5. Land Based Ecosystems retain ____ CO2.






6. The heat input is either driven by the 1- thermohaline circulation associated with sea ice formation. The direct influx of intermediate warmth water.






7. Greenhouse gases are mixed in the ____






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






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






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






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






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






13. Soil at or below the freezing point of water for two or more years - Can be: Terrestrial - Subsea - Can be: Continuous: exists across a landscape as an unbroken layer. More than 90% is frozen - Discontinuous






14. Grace - Tells us how much mass change we have - M - This is the measure of gravity (gives us the mass) - Directly measure mass change - Poor resolution






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






16. 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.






17. 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






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






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






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






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






22. Changes in the Earth's solar radiation levels can impact the climate. Shortterm warming cycles on Earth.






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






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






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






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






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






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






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






30. Mass balance due to processes that affect the surface of the ice sheet. Precipitation-evapotranspiration-runoff-blowing snow etc...






31. 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






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






33. Antarctica - stratosphere - Sep-Oct






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






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






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






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






38. Volcanic eruptions - Sunspots - Wobbly Earth






39. 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.






40. Where does the ozone protect us?






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






42. Radiation absorbed by atmospheric greenhouse gases?






43. 1.4 USA - 57 m total sea level equivalent






44. 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






45. US is responsible for ___ of the total CO2






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






47. In ________- inversion layer is more common in the Arctic






48. Melting Point decreases






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






50. 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