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






2. 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






3. SMB- mass balance due to processes that affect the surface of the ice sheet. Precipitation- evapotranspiration-runoff-blowing snow etc.






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






5. 1.4 USA - 57 m total sea level equivalent






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






7. 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%






8. Over the past century what has happened to the Earth's temperature?






9. Grace - Tells us how much mass change we have - M - This is the measure of gravity (gives us the mass) - Directly measure mass change - Poor resolution






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






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






12. Pollution: heat and sunlight cook the air and the chemical compounds which are in it. This combines with the nitrogen oxide and creates 'smog'. This makes breathing difficult for those with respiratory ailments.






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






14. The large-scale ocean circulation that moves water between the deep and surface ocean which effects salinity and temperature change - Supplies heat to the polar-regions.






15. 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






16. Rain is getting harder and the rain is lasting longer since the past couple of decades and will continue for that amount.






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






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






19. If the Earth is warmer - are we going to have the Hadley cell stronger or weaker? Hotter = heat rises which increases the circulation.






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






21. 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


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






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






24. Ocean retains ____ CO2






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






26. Sea ice - Continental ice sheets - Permafrost (frozen soil) - Mountain glaciers - Snow cover






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






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






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






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






31. Sea ice - Glaciers and Ice sheets - Alaska- ice glaciers - Greenland- ice sheets






32. Atmosphere retains ____ CO2






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






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






35. Climate models suggest once the sea ice cover is thinned sufficiently - a strong kick from natural variability could initiate a rapid slide towards ice-free conditions in the summer.






36. 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.






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






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






39. 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






40. Average molecular life span is less than 10 years - Major sources: Wetlands and oceans - Raising cattle and landfills.






41. How much is the planet really warming?






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






43. Where does the ozone protect us?






44. Land Based Ecosystems retain ____ CO2.






45. Over the Northern Hemisphere than the tropics.






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






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






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






49. Greenhouse gases are mixed in the ____






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