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. Greenhouse gases are mixed in the ____






2. 85%






3. 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






4. x7 smaller - 7m total sea level equivalent.






5. 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.






6. Number of days that exceed a given temperature






7. 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






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






9. 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






10. 1. We live in troposphere. Greenhouse gases here warm up the Earth 2. Above stratosphere. The ozone in this layer protects us.






11. US is responsible for ___ of the total CO2






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






13. 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.






14. 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.






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






16. Industrial product - 300 ppb (parts per billion)






17. Nitrogen (N2 78%) and Oxygen (O2 21%) - Their linear 2 atom molecular structure






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






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






20. Radiation that comes from the Sun - Visible light - 'near infrared' - ultraviolet radiation.






21. Hydrological drought is associated with the effect of low rainfall on water levels in rivers -!reservoirs -!lakes and aquifers.






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






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






24. Set up in 1988 by WMO and UNEP.






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






26. Rain is getting harder and the rain is lasting longer since the past couple of decades and will continue for that amount.






27. 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.






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






29. 1. Altimetry survey 2. Time-variable gravity 3. Ice motion + Regional Climate Modeling






30. Some parts of the planet are dry because of their location: most of the deserts are around 30 N and 30 S - where sinking air predominates






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






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






33. Top layer of soil that thaws during the summer and freezes again during autumn. - Between 1 and 3 m thick.






34. How often does El Nio occur?






35. 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.






36. Warming- positive feedback - Cooling- negative feedback.






37. Total absorbed solar radiation






38. Troposphere - Stratosphere (Ozone Layer) - Mesosphere - Ionosphere






39. 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






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






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






42. Fresh snow and snow-covered sea ice may have an albedo higher than 80% - even when melting in the summer. Sea ice has a higher albedo and can absorb as little as 10% of the solar energy. On average - sea ice albedo is around 85%






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






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






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






46. 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.






47. Where does the ozone protect us?






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






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






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