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. Over the Northern Hemisphere than the tropics.






2. Unfrozen ground that is found within a mass of permafrost






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






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






5. Closed talik can develop when lakes fill in with sediment and become deposits of dead plant material (bog).






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






7. 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






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






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

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10. ~15% of incident solar energy (albedo 85)






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






12. Changes in the Earth's solar radiation levels can impact the climate. Shortterm warming cycles on Earth.






13. Warming- positive feedback - Cooling- negative feedback.






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






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

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16. 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) -






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






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






19. 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






20. How often does El Nio occur?






21. The high pressure decreases the melting point and favors melting - Melt water being less dense rises along the water column along the ice shelf bottom and may either escape the cavity or refreeze at some intermediate depth. Melting point decreases:






22. Melting Point decreases






23. How much is the planet really warming?






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






25. Like weighing oneself on the scale.






26. 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






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






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






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






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






31. 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






32. 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






33. 85%






34. Betts et al found that: if CO-2 __________ this has a physiological effect on plant transpiration increased simulated runoff by 6% b. How? i. More CO2 1. Plants pores open less 2. This reduces transpiration 3. More water in the land surface






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






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






37. Amount of light absorbed by surface






38. 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






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






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






41. Greenhouse gases are mixed in the ____






42. 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.






43. A thick - floating slab of freshwater ice extending from coast to coast.






44. LW - SW - 55% absorbed by surface






45. 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






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






47. CO2 - CH4 - O3 - H2O - N2O - CFCs






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






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






50. Volcanic eruptions - Sunspots - Wobbly Earth