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. 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






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






3. A process whereby slabs of ice at the glacier margin mechanically fracture and detach from the main ice mass -






4. Land Based Ecosystems retain ____ CO2.






5. 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.






6. Temperature needed to melt at depth is much lower than that needed to melt at the surface.






7. 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






8. 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






9. Warming- positive feedback - Cooling- negative feedback.






10. High cloud has a _____ effect and cool cloud has a ____ effect






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






12. Number of days when temperatures climb above average by a fixed amount.






13. Really measures volume.






14. 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






15. 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






16. Antarctica - stratosphere - Sep-Oct






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






18. Over the Northern Hemisphere than the tropics.






19. The buoyant force is equal to the weight of the displaced water.

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20. The amount of light reflected by an object.






21. The land-surface configuration that results from the melting of ground ice in a region where permafrost degrades is called Thermokarst.






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






23. 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.






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






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






26. Forms in a mosaic of favoured locations.






27. ~10% of incident solar energy (albedo 90)






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






29. Where does the ozone protect us?






30. ~15% of incident solar energy (albedo 85)






31. 1. They are the largest contributor to sea level rise 2. Can affect the thermohaline circulation (mainly in Greenland) 3. Are directly connected to climate change






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






33. 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%






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






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






36. 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) -






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






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






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






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






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






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






43. he increase of ozone concentration in the atmosphere helps ____ our planet






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






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

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46. 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!






47. Cooler water and drought conditions.






48. Measures input and output.






49. 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.






50. All processes that add snow or ice to a glacier or to flowing ice or snow cover.