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. How often does El Nio occur?






2. Betts et al found that: if CO-2 __________ this has a physiological effect on plant transpiration increased simulated runoff by 6% b. How? i. More CO2 1. Plants pores open less 2. This reduces transpiration 3. More water in the land surface






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






4. 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






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






6. Clouds 40~90% - Vegetation 10~15%






7. Heat is provided by outside sources that flow down the continental slope to reach the deepest part of the glacier. High pressure decreases the melting point and favors melting.






8. 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






9. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






10. The amount of light reflected by an object.






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






12. 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






13. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






14. Much of the Arctic is overlain by snow and sea ice (land ice and sea ice) - It makes warming a much bigger deal in the Arctic






15. Really measures volume.






16. Summer increase in cloud cover - Winter decrease in cloud cover.


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






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






19. The Earth emits this.






20. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.


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






22. Volcanic eruptions - Sunspots - Wobbly Earth






23. Descending Air dry - Convection cells are wet.






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






25. 1. They are the largest contributor to sea level rise 2. Can affect the thermohaline circulation (mainly in Greenland) 3. Are directly connected to climate change






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






27. Massive cooldown has allowed colder conditions to persist leading to cfcs stabilizing leading to ozone depletion. Later - more warming will lead to more moisture in the air which will lead to more snowfall!






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






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






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






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






32. 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.






33. Land Based Ecosystems retain ____ CO2.






34. Amount of light absorbed by surface






35. Same amount of H2O - Mass does not change - Density of ice < density of water - Volume of ice > volume of water






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






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






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






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






40. Greenhouse gases are mixed in the ____






41. Number of days that exceed a given temperature






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


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






44. Radiation absorbed by atmospheric greenhouse gases?






45. Arctic warms faster than other parts of the globe in response to a given increase in greenhouse gasses - More direct route to warming - In the Arctic a greater fraction of any increase in radiation absorbed by the surface goes directly into warming t






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






47. A mass of land ice - continental or sub-continental in extent - and thick enough to cover most of the underlying bedrock topography - If you have a warm ocean - it will melt the ice sheet. Its shape is mainly determined by the dynamics of its outward






48. Sea ice - Continental ice sheets - Permafrost (frozen soil) - Mountain glaciers - Snow cover






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






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