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. 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.






2. Trade winds blow from East to West - Pool of warm water in the west - Meanwhile deep colder water rises up in the Eastern Pacific - The sea level is ~ 50-60 cm higher in Western Pacific (Indonesia) than in the Eastern Pacific (South America/Peru) -






3. US is responsible for ___ of the total CO2






4. Descending Air dry - Convection cells are wet.






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






6. Less frequent and weaker






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






8. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






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






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






11. Slow steady decline of about 4% per decade in the total volume of Earth's stratospheric ozone.






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






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






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






15. 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%






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






17. Is defined usually on the basis of the degree of dryness (in comparison to some 'normal' or average amount






18. Atmosphere retains ____ CO2






19. 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






20. The past climate...for this reason - both keep good records of climate change.






21. 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






22. 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






23. Amount of light absorbed by surface






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






25. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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26. Really measures volume.






27. Over the Northern Hemisphere than the tropics.






28. 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






29. Antarctica - stratosphere - Sep-Oct






30. 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






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






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






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






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






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






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






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






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






39. Heat is provided by outside sources that flow down the continental slope to reach the deepest part of the glacier. High pressure decreases the melting point and favors melting.






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






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






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






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






44. ~10% of incident solar energy (albedo 90)






45. Grounding line is the last portion of a glacier grounded to bedrock - after this line there are ice shelves - Glaciers contribute to sea level rise after passing the grounding line - Maximum thinning at grounding line.






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






47. 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.






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






49. How often does El Nio occur?






50. Low clouds are a ____ feedback; they will reflect more sunlight. Clouds reflect shortwave radiation but also absorb longwave radiation