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. Amount of light absorbed by atmosphere






2. 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) -






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






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






5. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






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






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






8. 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






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






10. Measures input and output.






11. Number of days that exceed a given temperature






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






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






14. 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.






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






16. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






17. 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






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






19. Arctic warms faster than other parts of the globe in response to a given increase in greenhouse gasses - More direct route to warming - In the Arctic a greater fraction of any increase in radiation absorbed by the surface goes directly into warming t






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






21. Rainy on yearly average. In these regions - rising air predominates.






22. 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.






23. Less frequent and weaker






24. O Climate change in the Arctic is occurring now - Changes have been huge already






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






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






27. Like weighing oneself on the scale.






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






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






30. Antarctica - stratosphere - Sep-Oct






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






32. Forms in a mosaic of favoured locations.






33. 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.






34. 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.






35. Forms from frozen ocean water - Floats on the ocean surface - Grows over the winter - melts in the summer






36. Where does the ozone protect us?






37. The amount of light reflected by an object.






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






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






40. 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.






41. 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






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






43. Rain is getting harder and the rain is lasting longer since the past couple of decades and will continue for that amount.






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






45. ~10% of incident solar energy (albedo 90)






46. High cloud has a _____ effect and cool cloud has a ____ effect






47. 1.4 USA - 57 m total sea level equivalent






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






49. 240 w/m squared






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