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






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






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






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






5. Ocean retains ____ CO2






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

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7. O Unfrozen soil that stays within the permafrost.






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






9. Climate models suggest once the sea ice cover is thinned sufficiently - a strong kick from natural variability could initiate a rapid slide towards ice-free conditions in the summer.






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






11. Sea ice - Continental ice sheets - Permafrost (frozen soil) - Mountain glaciers - Snow cover






12. Measures input and output.






13. 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!






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






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






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






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

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






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






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






21. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






22. Mass balance due to processes that affect the surface of the ice sheet. Precipitation-evapotranspiration-runoff-blowing snow etc...






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






24. Greenhouse gases are mixed in the ____






25. 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






26. 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.






27. 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.






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






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






30. 1. Land usage changes 2. Seasonal timing 3. Rising CO2 levels may be a factor






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






32. Nitrogen (N2 78%) and Oxygen (O2 21%) - Their linear 2 atom molecular structure






33. Floating extensions are ice shelves - rivers of ice are ice streams or outlet glaciers - the junctions with the ocean are called the grounding line.






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






35. 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.






36. Cooler water and drought conditions.






37. How much is the planet really warming?






38. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






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






40. 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.






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






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. The difference between the incoming radiation energy and the outgoing radiation energy - A measure of the net energy.






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






45. 240 w/m squared






46. Precipitation extremes appear to generally increase across the planet at especially high latitudes.






47. 10 : 1 - grounding ; surface






48. Ice sheets have a very ____ Albedo






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. Antarctica - stratosphere - Sep-Oct