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






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






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






4. Descending Air dry - Convection cells are wet.






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






6. Set up in 1988 by WMO and UNEP.






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






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






9. 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.






10. Greenhouse gases are mixed in the ____






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






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






13. The difference between the incoming radiation energy and the outgoing radiation energy - A measure of the net energy.






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






15. 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.






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






17. 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.






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






19. 1.4 USA - 57 m total sea level equivalent






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






21. How often does El Nio occur?






22. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






23. 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






24. Volcanic eruptions - Sunspots - Wobbly Earth






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






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






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






28. 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






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






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






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






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






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






34. 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






35. High vs low






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






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






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






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






40. 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






41. More common






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






43. Cooler water and drought conditions.






44. 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






45. Really measures volume.






46. When meltwater seeps through a flowing glacier - it can lubricate the base and hasten the glacier's seaward flow.






47. ~15% of incident solar energy (albedo 85)






48. Ice flowing from the middle of Greenland to the edges and melting. 90 feet a day- speed that ice is moving.






49. Land Based Ecosystems retain ____ CO2.






50. Water vapor - 36-70% - carbon dioxide - 9-26% - methane - 4-9% - ozone - 3-7%