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






2. Where does the ozone protect us?






3. 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






4. Amount of light absorbed by atmosphere






5. Laser radar - H V - Long time series - high accuracy - Density






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






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






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






9. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






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






11. How much is the planet really warming?






12. Amount of light absorbed by surface






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






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






15. Measures input and output.






16. The past climate...for this reason - both keep good records of climate change.






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






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






19. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






20. Occurs when there is not enough water available for a particular crop to grow at a particular time.Typically seen after!meteorological drought (when rainfall decreases) but before a hydrological drought






21. O Unfrozen soil that stays within the permafrost.






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






23. More common






24. Like weighing oneself on the scale.






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






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. Greenhouse gases are a ___ portion of the atmosphere






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






29. Concentration of 380 ppmv - Have risen about 40% - Preindustrial~ 270~280 ppmv






30. Wet gets _____ - dry gets ____ - Wet - 50ON (sub polar) Canada - N Europe - Russia - Tropical area- monsoon (rainforest) - Drier - Subtropics - Australia - S. Africa - Mediterranean - Caribbean - Mexico - SW US






31. 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.






32. Same as heating an apartment v home - Thinner atmosphere than tropics; warms faster.






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






34. 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%






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






36. 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






37. Antarctica - stratosphere - Sep-Oct






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






39. 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) -






40. Peru and Ecuador to the equatorial central pacific - Causes irregular warming in sea surface






41. 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.






42. Cooler water and drought conditions.






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






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






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






46. Top layer of soil that thaws during the summer and freezes again during autumn. - Between 1 and 3 m thick.






47. Hydrological drought is associated with the effect of low rainfall on water levels in rivers -!reservoirs -!lakes and aquifers.






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






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






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