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. Antarctica - stratosphere - Sep-Oct






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






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






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






5. If the Earth is warmer - are we going to have the Hadley cell stronger or weaker? Hotter = heat rises which increases the circulation.






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






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

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8. Sea ice - Glaciers and Ice sheets - Alaska- ice glaciers - Greenland- ice sheets






9. x7 smaller - 7m total sea level equivalent.






10. 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) -






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






12. Surface Mass Balance is of the order of _____ melting is ____ times more.






13. The amount of light reflected by an object.






14. 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






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






16. 240 w/m squared






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






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






19. Deep tropics between 15O N and 15 O S are quite rainy on yearly average. In these regions - rising air predominates.






20. Ozone layer in high stratosphere (25-40 km altitude) absorbs about 95-99% of ultraviolet radiation.






21. How much is the planet really warming?






22. 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






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






24. 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.






25. Descending Air dry - Convection cells are wet.






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






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






28. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






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






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






31. 1. Keeps the ocean and the earth cooler 2. Coastal impacts of ice: prevents waves from eroding coastlines and protects from storms. 3. Ecological importance of ice: a. Most visibly for the many fish - birds - and mammal species that live in - on - or






32. Set up in 1988 by WMO and UNEP.






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






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






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






36. Radiation absorbed by atmospheric greenhouse gases?






37. High vs low






38. 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






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






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






41. 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.






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






43. Troposphere - Stratosphere (Ozone Layer) - Mesosphere - Ionosphere






44. 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.






45. Melting Point decreases






46. 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.






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






48. The Earth emits this.






49. 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






50. Extent will increase the warming because less energy will be reflected back to the atmosphere by the ice and more will be absorbed by the ocean.