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






2. Cooler water and drought conditions.






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






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






5. The high pressure decreases the melting point and favors melting - Melt water being less dense rises along the water column along the ice shelf bottom and may either escape the cavity or refreeze at some intermediate depth. Melting point decreases:






6. The warmer the temperature - the deeper the active layer - thaws and refreezes every year - Permafrost below freezing for two or more years.






7. Really measures volume.






8. Number of days that exceed a given temperature






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






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






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






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






13. 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






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






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






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






17. The amount of light reflected by an object.






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






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






20. 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






21. 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.






22. A mass of land ice - continental or sub-continental in extent - and thick enough to cover most of the underlying bedrock topography - If you have a warm ocean - it will melt the ice sheet. Its shape is mainly determined by the dynamics of its outward






23. Longwave radiation - any radiation with a long wave will heat up quickly.






24. CO2 GHG forcing - H2O - dominant/major GHG






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






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






27. Atmosphere retains ____ CO2






28. Precipitation intensity will rise ___ for every 1 OC of warming.






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






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






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






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






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






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






35. 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) -






36. Like weighing oneself on the scale.






37. The Earth emits this.






38. 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%






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






40. If the mean annual air temperature is only slightly below 0 degrees C - permafrost will form only in spots that are sheltered.






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






42. Descending Air dry - Convection cells are wet.






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






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






45. How often does El Nio occur?






46. 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.






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






48. Melting Point decreases






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






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

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