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






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






3. 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.






4. High vs low






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






6. Hydrological drought is associated with the effect of low rainfall on water levels in rivers -!reservoirs -!lakes and aquifers.






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






8. The major distinction between the Protocol and the Convention is that while the Convention encouraged industrialized countries to stabilize GHG emissions - the Protocol commits them to do so.






9. 85%






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






11. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






12. 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






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






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






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






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






17. Number of days that exceed a given temperature






18. Forms in a mosaic of favoured locations.






19. Precipitation intensity will rise ___ for every 1 OC of warming.






20. Number of days when temperatures climb above average by a fixed amount.






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






22. Where do greenhouse gases warm up the Earth?






23. Poor resolution (200-400 km) does not allow us to distinguish glaciers and basins.






24. ~10% of incident solar energy (albedo 90)






25. Like weighing oneself on the scale.






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






27. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






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






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






30. Over the Northern Hemisphere than the tropics.






31. 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






32. Land Based Ecosystems retain ____ CO2.






33. 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






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






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






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






37. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






38. Cooler water and drought conditions.






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






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






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






42. SALTY WATER = MORE DENSE - Maximum density at 4OC - This is why ice melting is a big deal; if the whole circle slows down - Ice bergs are fresh water higher sea level rise.






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






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






45. 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%






46. Heat is provided by outside sources that flow down the continental slope to reach the deepest part of the glacier. High pressure decreases the melting point and favors melting.






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






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






49. 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






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