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. Radiation absorbed by atmospheric greenhouse gases?






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






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






4. Number of days that exceed a given temperature






5. Cooler water and drought conditions.






6. 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






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






8. Less frequent and weaker






9. Positive Albedo Feedback - increase in temperature melts ice and snow reduces albedo increases temperature melts ice and snow reduces albedo... ETC






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






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






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






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






14. 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.






15. Greenhouse gases are a ___ portion of the atmosphere






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






17. 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.






18. 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






19. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






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






22. 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






23. Where does the ozone protect us?






24. Under higher pressure the melting point decreases ____ - The pressure comes from the weight of the ice shelf.






25. CO2 ____ in winter in the NH and ____ decreases during the 'greening season'






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






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






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






29. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






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






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






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






33. Permafrost- A frozen soil






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

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35. 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.






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






37. 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.






38. 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






39. 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






40. 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.






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






42. ~10% of incident solar energy (albedo 90)






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






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






45. 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.






46. Help darkens the snow and ice surface - increasing the amount of energy that is absorbed.






47. They saw a massive thinning of the ice where it enters into the ocean - This is due to the pronounced melting of the ice once it is in contact with the ocean. Melt rates of 25 m/year near the grounding lines and more than 10 m/year on average.






48. Greenhouse gases are mixed in the ____






49. Ice sheets have a very ____ Albedo






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