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. Land Based Ecosystems retain ____ CO2.






2. Amount of light absorbed by surface






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






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






5. Greenhouse gases are a ___ portion of the atmosphere






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






7. Is best viewed as a combination of...- Natural Variability - Associated with atmospheric circulation patterns - Growing Radiative Forcing - Associated with rising concentrations of atmospheric greenhouse gases - Strongly suggests a human influence.






8. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






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






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






11. 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






12. 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.






13. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






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






15. Help darkens the snow and ice surface - increasing the amount of energy that is absorbed.






16. 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






17. How much is the planet really warming?






18. 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.






19. 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.






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






21. Total absorbed solar radiation






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






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






24. Set up in 1988 by WMO and UNEP.






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






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






27. How often does El Nio occur?






28. The warmer the temperature - the deeper the active layer - thaws and refreezes every year - Permafrost below freezing for two or more years.






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






30. The Earth emits this.






31. Melting Point decreases






32. Climate models suggest once the sea ice cover is thinned sufficiently - a strong kick from natural variability could initiate a rapid slide towards ice-free conditions in the summer.






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






34. Forms in a mosaic of favoured locations.






35. 10 : 1 - grounding ; surface






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






37. Under higher pressure the melting point decreases ____ - The pressure comes from the weight of the ice shelf.






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






39. 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






40. Volcanic eruptions - Sunspots - Wobbly Earth






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






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






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






44. 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






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






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






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






48. Pollution: heat and sunlight cook the air and the chemical compounds which are in it. This combines with the nitrogen oxide and creates 'smog'. This makes breathing difficult for those with respiratory ailments.






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

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