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






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






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






5. Melting Point decreases






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






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






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






9. 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






10. Set up in 1988 by WMO and UNEP.






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






12. How often does El Nio occur?






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






14. 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.






15. Atmosphere retains ____ CO2






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






17. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






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






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






20. Permafrost- A frozen soil






21. O Climate change in the Arctic is occurring now - Changes have been huge already






22. Reduction of Summer Sea- will increase the warming because less energy will be reflected back to the atmosphere by the ice and more will be absorbed by the ocean - Snow and snow covered ice absorb 15% of incident solar energy - Ice absorbs 10% of inc






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






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

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25. Most of the deserts are around 30 N and 30 S - where sinking air predominates






26. 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.






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






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






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






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






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






32. 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






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






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






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






36. 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.






37. Over the Northern Hemisphere than the tropics.






38. Refers to the irregular warming in the Sea Surface Temperatures (SST) from the coasts of Peru and Ecuador to the equatorial central Pacific - the Southern Oscillation






39. How much is the planet really warming?






40. 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.






41. 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






42. 1.4 USA - 57 m total sea level equivalent






43. O Unfrozen soil that stays within the permafrost.






44. 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.






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






46. By contrast reflects only about 7% of solar radiation (Albedo~7%) - absorbing 93%.






47. Extent will increase the warming because less energy will be reflected back to the atmosphere by the ice and more will be absorbed by the ocean.






48. Unfrozen ground that is found within a mass of permafrost






49. If the mean annual air temperature is only slightly below 0 degrees C - permafrost will form only in spots that are sheltered.






50. Forms from frozen ocean water - Floats on the ocean surface - Grows over the winter - melts in the summer