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. Forms in a mosaic of favoured locations.






2. 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.






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






4. 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.






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






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






7. Greenhouse gases are mixed in the ____






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






9. 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






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






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






12. Melting Point decreases






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






14. More common






15. Cooler water and drought conditions.






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






17. Atmosphere retains ____ CO2






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






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






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






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






22. Greenhouse gases are a ___ portion of the atmosphere






23. LW - SW - 55% absorbed by surface






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






25. Is unfrozen ground that is exposed to the ground surface and to a larger mass of unfrozen ground beneath it.






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






27. 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.






28. Positive Albedo Feedback - increase in temperature melts ice and snow reduces albedo increases temperature melts ice and snow reduces albedo... ETC






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






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






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






32. 10 : 1 - grounding ; surface






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






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






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






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






37. Clouds 40~90% - Vegetation 10~15%






38. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






39. O The amount of energy moving in the form of photons or other elementary particles at a certain distance from the source per unit of area per second. Area/second






40. 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






41. 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.






42. 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.






43. How much is the planet really warming?






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






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






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






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






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






49. Ozone layer in high stratosphere (25-40 km altitude) absorbs about 95-99% of ultraviolet radiation.






50. Number of days that exceed a given temperature