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 surface






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






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






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






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






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






7. Antarctica - stratosphere - Sep-Oct






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






9. Reduction of Summer Sea- 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 - Snow and snow covered ice absorb 15% of incident solar energy - Ice absorbs 10% of inc






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






11. Total absorbed solar radiation






12. Really measures volume.






13. 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:






14. ~10% of incident solar energy (albedo 90)






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






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






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






18. Is defined usually on the basis of the degree of dryness (in comparison to some 'normal' or average amount






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






20. CO2 ____ in winter in the NH and ____ decreases during the 'greening season'






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






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






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






24. 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






25. 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.






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






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






28. 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.






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






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






31. More common






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






33. 1.4 USA - 57 m total sea level equivalent






34. ~15% of incident solar energy (albedo 85)






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






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






37. Land Based Ecosystems retain ____ CO2.






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






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






40. Ice sheets have a very ____ Albedo






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






42. 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) -






43. Amount of light absorbed by atmosphere






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






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






46. Betts et al found that: if CO-2 __________ this has a physiological effect on plant transpiration increased simulated runoff by 6% b. How? i. More CO2 1. Plants pores open less 2. This reduces transpiration 3. More water in the land surface






47. Refers to the irregular warming in the Sea Surface Temperatures (SST) from the coasts of Peru and Ecuador to the equatorial central Pacific - the Southern Oscillation






48. O Unfrozen soil that stays within the permafrost.






49. Volcanic eruptions - Sunspots - Wobbly Earth






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