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






3. Water vapor - 36-70% - carbon dioxide - 9-26% - methane - 4-9% - ozone - 3-7%






4. 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.






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






6. Concentration of 380 ppmv - Have risen about 40% - Preindustrial~ 270~280 ppmv






7. Number of days that land among the hottest of all days in that month's long-term record.






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






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






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






11. 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






12. Temperature needed to melt at depth is much lower than that needed to melt at the surface.






13. 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






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






15. If the Earth is warmer - are we going to have the Hadley cell stronger or weaker? Hotter = heat rises which increases the circulation.






16. When inversion breaks up _______________. - Consequently - anything that breaks inversions or makes them form less often could produce major ground level warming.






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






18. 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.






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






21. Over the Northern Hemisphere than the tropics.






22. 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.






23. Hydrological drought is associated with the effect of low rainfall on water levels in rivers -!reservoirs -!lakes and aquifers.






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






25. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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26. Warming- positive feedback - Cooling- negative feedback.






27. More common






28. Really measures volume.






29. Melting Point decreases






30. 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






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






32. High clouds are a ____ feedback; larger greenhouse warming - Clouds reflect shortwave radiation but also absorb longwave radiation






33. Is unfrozen ground that is exposed to the ground surface and to a larger mass of unfrozen ground beneath it.






34. Permafrost- A frozen soil






35. 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






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






37. Amount of light absorbed by surface






38. 240 w/m squared






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






40. Due to a set of mutually reinforcing processes - climate change appears to be progressing in the arctic more quickly than in any other region on Earth.






41. Volcanic eruptions - Sunspots - Wobbly Earth






42. Antarctica - stratosphere - Sep-Oct






43. Radiation absorbed by atmospheric greenhouse gases?






44. Trade winds blow from East to West - Pool of warm water in the west - Meanwhile deep colder water rises up in the Eastern Pacific - The sea level is ~ 50-60 cm higher in Western Pacific (Indonesia) than in the Eastern Pacific (South America/Peru) -






45. Pockets of ice in the topmost permafrost caused by thawing which create an underground lake.






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






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






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






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






50. CO2 ____ in winter in the NH and ____ decreases during the 'greening season'