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. 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.






2. Number of days that exceed a given temperature






3. 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






4. Higher temperature increases atmospheric water vapor @ global scale more water vapor in the air that causes nights to stay warmer.






5. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






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






7. Like weighing oneself on the scale.






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






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






10. A process whereby slabs of ice at the glacier margin mechanically fracture and detach from the main ice mass -






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






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






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






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






15. Descending Air dry - Convection cells are wet.






16. 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.






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






18. Refers to a body of freshwater - usually shallow - formed in a depression by melt water from thawing permafrost.






19. 1.4 USA - 57 m total sea level equivalent






20. More common






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






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






23. South polar vortex - Temperatures drop below 80O Celsius in the lower stratosphere - At these temperatures the chemicals in the stratosphere freeze and form Polar Stratospheric Clouds (PSCS) - These increase the concentration of CFCs in turn destroyi






24. A naturally or artificially caused decrease in the thickness and/or areal extent of permafrost - It is caused by the deepening fo the active layer and the thawing of the adjacent permafrost.






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






26. 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






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






28. Ice sheets have a very ____ Albedo






29. This is the total mass change - difference between input and outputs—snow accumulation-ablation.






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






31. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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






33. 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.






34. Slow steady decline of about 4% per decade in the total volume of Earth's stratospheric ozone.






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






36. Permafrost- A frozen soil






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






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






39. Carbon dioxide - Methane - Ozone - Water Vapor - Few others - Most ___________________ are mixed in the troposphere (Except water vapor) - Water vapor is concentrated closer to the ground.






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






41. 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.






42. Where do greenhouse gases warm up the Earth?






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






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






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






46. 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






47. Warming- positive feedback - Cooling- negative feedback.






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






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






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