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






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






3. On a clear cold day - the thin layer of air hugging the ground is called inversion. This layer is much cooler than the air a few hundred meters above it.






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






5. Permafrost- A frozen soil






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






7. 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.






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






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






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






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






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






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






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






15. 1.4 USA - 57 m total sea level equivalent






16. 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.






17. O The amount of energy moving in the form of photons or other elementary particles at a certain distance from the source per unit of area per second. Area/second






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






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






20. Like weighing oneself on the scale.






21. A dome shaped cover of perennial ice and snow.






22. 10 : 1 - grounding ; surface






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






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






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






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






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






28. Greenhouse gases are mixed in the ____






29. How often does El Nio occur?






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






31. 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






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






33. Radiation absorbed by atmospheric greenhouse gases?






34. SMB- mass balance due to processes that affect the surface of the ice sheet. Precipitation- evapotranspiration-runoff-blowing snow etc.






35. In troposphere = greenhouse warming gas - However - most of it is in the stratosphere.






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






37. Average molecular life span is less than 10 years - Major sources: Wetlands and oceans - Raising cattle and landfills.






38. Forms in a mosaic of favoured locations.






39. Greenhouse gases are a ___ portion of the atmosphere






40. Ocean retains ____ CO2






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






42. 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.






43. 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.






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






45. The Earth emits this.






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






47. 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






48. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






49. 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






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







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