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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. O Unfrozen soil that stays within the permafrost.






2. Same amount of H2O - Mass does not change - Density of ice < density of water - Volume of ice > volume of water






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






4. 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






5. How much is the planet really warming?






6. Most of the deserts are around 30 N and 30 S - where sinking air predominates






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. 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%






9. 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.






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






11. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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






13. Slow steady decline of about 4% per decade in the total volume of Earth's stratospheric ozone.






14. Where does the ozone protect us?






15. Forms in a mosaic of favoured locations.






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






17. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






18. Grounding line is the last portion of a glacier grounded to bedrock - after this line there are ice shelves - Glaciers contribute to sea level rise after passing the grounding line - Maximum thinning at grounding line.






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






20. Where do greenhouse gases warm up the Earth?






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






22. Is best viewed as a combination of...- Natural Variability - Associated with atmospheric circulation patterns - Growing Radiative Forcing - Associated with rising concentrations of atmospheric greenhouse gases - Strongly suggests a human influence.






23. Over the past century what has happened to the Earth's temperature?






24. 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.






25. Set up in 1988 by WMO and UNEP.






26. 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






27. In average: +1% in respect to 100 years ago.






28. The Earth emits this.






29. Less frequent and weaker






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






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






32. The transition of a substance from the solid phase directly to the vapor phase - or vice versa - without passing through an intermediate liquid phase.






33. 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






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






35. Heat is provided by outside sources that flow down the continental slope to reach the deepest part of the glacier. High pressure decreases the melting point and favors melting.






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






37. 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.






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






39. Greenhouse gases are a ___ portion of the atmosphere






40. Ocean retains ____ CO2






41. 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






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






43. Help darkens the snow and ice surface - increasing the amount of energy that is absorbed.






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






45. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






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






47. 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.






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






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






50. ~10% of incident solar energy (albedo 90)







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