Test your basic knowledge |

Global Warming

Subjects : literacy, science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. 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






2. 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






3. Ice melting rapidly? What type causes sea level to rise? What have been the main contributors to sea level rise so far? What are the impacts of melting ice? - On nature - On humans






4. How often does El Nio occur?






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






6. A dome shaped cover of perennial ice and snow.






7. 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






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






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






10. Ocean retains ____ CO2






11. A naturally or artificially caused decrease in the thickness and/or areal extent of permafrost - It is caused by the deepening fo the active layer and the thawing of the adjacent permafrost.






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






13. 1.4 USA - 57 m total sea level equivalent






14. US is responsible for ___ of the total CO2






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






16. Forms in a mosaic of favoured locations.






17. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






18. ~15% of incident solar energy (albedo 85)






19. Just remember the general direction of the circulation - Rising northern pacific. You start in between Greenland and Europe (youngest water) - Oldest water is in the Pacific Ocean - Salty water> fresh water - Cold Water > Warm Water






20. 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






21. 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.






22. The Earth emits this.






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

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






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






26. The amount of light reflected by an object.






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






28. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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29. Pollution: heat and sunlight cook the air and the chemical compounds which are in it. This combines with the nitrogen oxide and creates 'smog'. This makes breathing difficult for those with respiratory ailments.






30. CO2 GHG forcing - H2O - dominant/major GHG






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






32. In troposphere = greenhouse warming gas - However - most of it is in the stratosphere.






33. Prolonged period of excessively hot weather - Which may be accompanied by high humidity.






34. Number of days that exceed a given temperature






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






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






37. 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.






38. Land Based Ecosystems retain ____ CO2.






39. Greenhouse gases are mixed in the ____






40. Changes over time in the highest and lowest single temperature observed during a given month of the year.






41. Antarctica - stratosphere - Sep-Oct






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






43. Sea ice and continental ice. This is caused by Atmospheric warming triggers.






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






45. 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!






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






47. Warming- positive feedback - Cooling- negative feedback.






48. Reduction of snow and ice cover - Changes in atmospheric circulation.






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






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







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