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. CO2 - CH4 - O3 - H2O - N2O - CFCs






2. On a clear cold day - the thin layer of air hugging the ground is called inversion. This layer is much cooler than the air a few hundred meters above it.






3. The depletion of stratospheric ozone layer in Antarctica in Springtime (august through October)






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






5. Refers to a body of freshwater - usually shallow - formed in a depression by melt water from thawing permafrost.






6. 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






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






8. 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.






9. Soil at or below the freezing point of water for two or more years - Can be: Terrestrial - Subsea - Can be: Continuous: exists across a landscape as an unbroken layer. More than 90% is frozen - Discontinuous






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






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






12. Help darkens the snow and ice surface - increasing the amount of energy that is absorbed.






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






14. All processes that add snow or ice to a glacier or to flowing ice or snow cover.






15. At the bottom of the ice sheets the temperature doesn't necessarily have to be above 0... it could _____ more easily because of the water






16. 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






17. 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) -






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






19. 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






20. Tundra absorbs more energy than ice and snow but less than scrubs and forest - and with those plants migrating towards the north - they will further contribute ot absorb more energy.






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






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






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






24. The Day After Tomorrow - Circulation will slow by 10% to 50% in the next century






25. Warming- positive feedback - Cooling- negative feedback.






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






27. Taliks are found under lakes because of the ability of water to store and vertically transfer heat energy - Vertical extent of the taliks found under lakes is related to the depth and volume of the overlying water body.






28. Less frequent and weaker






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






30. Atmosphere retains ____ CO2






31. Changes over time in the highest and lowest single temperature observed during a given month of the year.






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






33. A thick - floating slab of freshwater ice extending from coast to coast.






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






35. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


36. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






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






38. Just remember the general direction of the circulation - Rising northern pacific. You start in between Greenland and Europe (youngest water) - Oldest water is in the Pacific Ocean - Salty water> fresh water - Cold Water > Warm Water






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






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






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






42. O Unfrozen soil that stays within the permafrost.






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






44. Forms in a mosaic of favoured locations.






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






46. 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






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






48. 240 w/m squared






49. Radiation absorbed by atmospheric greenhouse gases?






50. The amount of light reflected by an object.