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. Closed talik can develop when lakes fill in with sediment and become deposits of dead plant material (bog).






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






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






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






5. Greenhouse gases are mixed in the ____






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






7. Over the Northern Hemisphere than the tropics.






8. Greenhouse gases are a ___ portion of the atmosphere






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






10. 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






11. Industrial product - 300 ppb (parts per billion)






12. High cloud has a _____ effect and cool cloud has a ____ effect






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






14. The order of 1 m/year. Melting is ten times more.






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






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






17. 240 w/m squared






18. Reduction of snow and ice cover - Changes in atmospheric circulation.






19. High vs low






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






21. The warmer the temperature - the deeper the active layer - thaws and refreezes every year - Permafrost below freezing for two or more years.






22. O Unfrozen soil that stays within the permafrost.






23. Mass balance due to processes that affect the surface of the ice sheet. Precipitation-evapotranspiration-runoff-blowing snow etc...






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






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






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






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






28. 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.






29. 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) -






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






31. When inversion breaks up _______________. - Consequently - anything that breaks inversions or makes them form less often could produce major ground level warming.






32. Total absorbed solar radiation






33. They saw a massive thinning of the ice where it enters into the ocean - This is due to the pronounced melting of the ice once it is in contact with the ocean. Melt rates of 25 m/year near the grounding lines and more than 10 m/year on average.






34. South polar vortex - Temperatures drop below 80O Celsius in the lower stratosphere - At these temperatures the chemicals in the stratosphere freeze and form Polar Stratospheric Clouds (PSCS) - These increase the concentration of CFCs in turn destroyi






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






36. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






37. Land Based Ecosystems retain ____ CO2.






38. 85%






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






40. Set up in 1988 by WMO and UNEP.






41. Forms from frozen ocean water - Floats on the ocean surface - Grows over the winter - melts in the summer






42. 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.






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






44. 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.






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






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






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






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






49. 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%






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