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






2. Less frequent and weaker






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






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






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






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






7. Is unfrozen ground that is exposed to the ground surface and to a larger mass of unfrozen ground beneath it.






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






9. Measures input and output.






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






11. 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






12. 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.






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






14. 10 : 1 - grounding ; surface






15. The heat input is either driven by the 1- thermohaline circulation associated with sea ice formation. The direct influx of intermediate warmth water.






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






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






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






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






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

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21. 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






22. Number of days that exceed a given temperature






23. Carbon dioxide - Methane - Ozone - Water Vapor - Few others - Most ___________________ are mixed in the troposphere (Except water vapor) - Water vapor is concentrated closer to the ground.






24. 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%






25. Temperature needed to melt at depth is much lower than that needed to melt at the surface.






26. This is the total mass change - difference between input and outputs—snow accumulation-ablation.






27. Where do greenhouse gases warm up the Earth?






28. Total absorbed solar radiation






29. By contrast reflects only about 7% of solar radiation (Albedo~7%) - absorbing 93%.






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






31. LW - SW - 55% absorbed by surface






32. US is responsible for ___ of the total CO2






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






34. High vs low






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






36. Due to a set of mutually reinforcing processes - climate change appears to be progressing in the arctic more quickly than in any other region on Earth.






37. The amount of light reflected by an object.






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






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






40. 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






41. 1. They are the largest contributor to sea level rise 2. Can affect the thermohaline circulation (mainly in Greenland) 3. Are directly connected to climate change






42. Land Based Ecosystems retain ____ CO2.






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






44. 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.






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






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






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






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






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






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