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. CO2 GHG forcing - H2O - dominant/major GHG






2. Ocean retains ____ CO2






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






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






5. 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






6. 240 w/m squared






7. The air can hold less water vapor - Consequently - less water can be evaporated in the air - and only a small portion of energy is used in this process - Most of the energy that reaches the Arctic goes directly into warming the air






8. Sea ice - Glaciers and Ice sheets - Alaska- ice glaciers - Greenland- ice sheets






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






10. 85%






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






12. Total absorbed solar radiation






13. The Earth emits this.






14. How much is the planet really warming?






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






16. Where does the ozone protect us?






17. 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.






18. 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






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






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. Warming- positive feedback - Cooling- negative feedback.






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






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






24. 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.






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






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






27. Volcanic eruptions - Sunspots - Wobbly Earth






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






29. Descending Air dry - Convection cells are wet.






30. Less frequent and weaker






31. Measures input and output.






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






33. Like weighing oneself on the scale.






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






35. 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






36. Floating extensions are ice shelves - rivers of ice are ice streams or outlet glaciers - the junctions with the ocean are called the grounding line.






37. 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






38. Average molecular life span is less than 10 years - Major sources: Wetlands and oceans - Raising cattle and landfills.






39. 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






40. Melting Point decreases






41. Greenhouse gases are a ___ portion of the atmosphere






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






43. 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






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






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






46. Is best viewed as a combination of...- Natural Variability - Associated with atmospheric circulation patterns - Growing Radiative Forcing - Associated with rising concentrations of atmospheric greenhouse gases - Strongly suggests a human influence.






47. Tundra absorbs more energy than ice and snow but less than scrubs and forest - and with those plants migrating towards the north - they will further contribute ot absorb more energy.






48. 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






49. The amount of light reflected by an object.






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