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






2. Cooler water and drought conditions.






3. Less frequent and weaker






4. High clouds are a ____ feedback; larger greenhouse warming - Clouds reflect shortwave radiation but also absorb longwave radiation






5. 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






6. Radiation absorbed by atmospheric greenhouse gases?






7. 1.4 USA - 57 m total sea level equivalent






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






9. LW - SW - 55% absorbed by surface






10. The buoyant force is equal to the weight of the displaced water.

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






12. Melting Point decreases






13. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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






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






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






17. 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






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






19. 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






20. Water vapor means more water up in the clouds and less in the ground!






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






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






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






24. 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.






25. 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






26. Number of days that exceed a given temperature






27. 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






28. 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






29. Sea ice and continental ice. This is caused by Atmospheric warming triggers.






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






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






32. Total absorbed solar radiation






33. The Earth emits this.






34. 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






35. Some parts of the planet are dry because of their location: most of the deserts are around 30 N and 30 S - where sinking air predominates






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






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

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38. 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.






39. Carbon dioxide - Methane - Ozone - Water Vapor - Few others - Most ___________________ are mixed in the troposphere (Except water vapor) - Water vapor is concentrated closer to the ground.






40. On a clear cold day - the thin layer of air hugging the ground is called inversion. This layer is much cooler than the air a few hundred meters above it.






41. Changes in the Earth's solar radiation levels can impact the climate. Shortterm warming cycles on Earth.






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






43. 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%






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






45. A naturally or artificially caused decrease in the thickness and/or areal extent of permafrost - It is caused by the deepening fo the active layer and the thawing of the adjacent permafrost.






46. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






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






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






49. 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.






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







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