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. Forms in a mosaic of favoured locations.






2. Much of the Arctic is overlain by snow and sea ice (land ice and sea ice) - It makes warming a much bigger deal in the Arctic






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






4. The large-scale ocean circulation that moves water between the deep and surface ocean which effects salinity and temperature change - Supplies heat to the polar-regions.






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






6. What can cause a change in the Earth's climate balance?






7. Like weighing oneself on the scale.






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






9. Water vapor means more water up in the clouds and less in the ground!






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






11. In _______ - the inversions are less frequent and weaker in the Arctic.






12. Volcanic eruptions - Sunspots - Wobbly Earth






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






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






15. Land Based Ecosystems retain ____ CO2.






16. 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






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






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






19. LW - SW - 55% absorbed by surface






20. How much is the planet really warming?






21. 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






22. South polar vortex - Temperatures drop below 80O Celsius in the lower stratosphere - At these temperatures the chemicals in the stratosphere freeze and form Polar Stratospheric Clouds (PSCS) - These increase the concentration of CFCs in turn destroyi






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






24. Amount of light absorbed by surface






25. 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) -






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






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






28. 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.






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






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. Greenhouse gases are mixed in the ____






32. Warming- positive feedback - Cooling- negative feedback.






33. In ________- inversion layer is more common in the Arctic






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






35. Longwave radiation - any radiation with a long wave will heat up quickly.






36. Arctic warms faster than other parts of the globe in response to a given increase in greenhouse gasses - More direct route to warming - In the Arctic a greater fraction of any increase in radiation absorbed by the surface goes directly into warming t






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






38. Massive cooldown has allowed colder conditions to persist leading to cfcs stabilizing leading to ozone depletion. Later - more warming will lead to more moisture in the air which will lead to more snowfall!






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






40. Antarctica - stratosphere - Sep-Oct






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






42. 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.






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






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






45. At the bottom of the ice sheets the temperature doesn't necessarily have to be above 0... it could _____ more easily because of the water






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






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






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






49. In average: +1% in respect to 100 years ago.






50. 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.