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






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






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






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






5. 1. Keeps the ocean and the earth cooler 2. Coastal impacts of ice: prevents waves from eroding coastlines and protects from storms. 3. Ecological importance of ice: a. Most visibly for the many fish - birds - and mammal species that live in - on - or






6. Holds unique and key information - Are highly interconnected - Respond and drive climate change - Are the largest freshwater reservoirs of the planet - Ice cores tell us that in climate records - nothing is regular and ice sheet plays major role.






7. Is best viewed as a combination of...- Natural Variability - Associated with atmospheric circulation patterns - Growing Radiative Forcing - Associated with rising concentrations of atmospheric greenhouse gases - Strongly suggests a human influence.






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






9. Amount of light absorbed by surface






10. Extent 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.






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






12. 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.






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






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






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






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






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






18. 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.






19. 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






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






21. 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) -






22. Over the Northern Hemisphere than the tropics.






23. Like weighing oneself on the scale.






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






25. Pockets of ice in the topmost permafrost caused by thawing which create an underground lake.






26. 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






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






28. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






29. 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


30. Forms in a mosaic of favoured locations.






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






32. Unfrozen ground that is found within a mass of permafrost






33. Total absorbed solar radiation






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

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


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






36. 1. Land usage changes 2. Seasonal timing 3. Rising CO2 levels may be a factor






37. 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:






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






39. 1.4 USA - 57 m total sea level equivalent






40. Measures input and output.






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






42. When meltwater seeps through a flowing glacier - it can lubricate the base and hasten the glacier's seaward flow.






43. 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






44. Atmosphere retains ____ CO2






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






46. 240 w/m squared






47. 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.






48. 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






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






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