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






2. 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.






3. 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






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






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






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






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






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






9. 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.






10. 85%






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






12. The order of 1 m/year. Melting is ten times more.






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






14. They saw a massive thinning of the ice where it enters into the ocean - This is due to the pronounced melting of the ice once it is in contact with the ocean. Melt rates of 25 m/year near the grounding lines and more than 10 m/year on average.






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






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. Water vapor - 36-70% - carbon dioxide - 9-26% - methane - 4-9% - ozone - 3-7%






18. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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19. 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!






20. Over the Northern Hemisphere than the tropics.






21. Greenhouse gases are mixed in the ____






22. Number of days that exceed a given temperature






23. Melting Point decreases






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






25. 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.






26. Long time series started in the '70s and yielding good data in the '90s - Detects elevation with high accuracy: 10 cm precision (laser) to 1 m (radar) - 2/3 Gravity Surveys (GRACE) - Weighing the total mass every 30 days - Direct monthly estimate






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






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






29. 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






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






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






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






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






34. 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






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






36. Number of days that land among the hottest of all days in that month's long-term record.






37. How often does El Nio occur?






38. When inversion breaks up _______________. - Consequently - anything that breaks inversions or makes them form less often could produce major ground level warming.






39. Forms in a mosaic of favoured locations.






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






41. 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.






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






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






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






45. Like weighing oneself on the scale.






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






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






48. An area of unfrozen ground that is open to the ground surface but otherwise enclosed in permafrost.






49. Atmospheric Cooling - Both negative (stabilizing) feedbacks - It is not happening now - but it has happened in the past - Ice-albedo feedback was the dominant feedback during the ice ages.






50. The Earth emits this.