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. Concentration of 380 ppmv - Have risen about 40% - Preindustrial~ 270~280 ppmv






2. The air can hold less water vapor - Consequently - less water can be evaporated in the air - and only a small portion of energy is used in this process - Most of the energy that reaches the Arctic goes directly into warming the air






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






4. Really measures volume.






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






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






7. Ocean retains ____ CO2






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






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






10. 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.






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






12. The Day After Tomorrow - Circulation will slow by 10% to 50% in the next century






13. 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






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






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






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






17. Greenhouse gases are a ___ portion of the atmosphere






18. LW - SW - 55% absorbed by surface






19. 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.






20. The high pressure decreases the melting point and favors melting - Melt water being less dense rises along the water column along the ice shelf bottom and may either escape the cavity or refreeze at some intermediate depth. Melting point decreases:






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






22. Measures input and output.






23. What can cause a change in the Earth's climate balance?






24. Number of days that land among the hottest of all days in that month's long-term record.






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. 1. Altimetry survey 2. Time-variable gravity 3. Ice motion + Regional Climate Modeling






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






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






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






31. 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.






32. 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






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






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

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35. 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.






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






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






38. 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






39. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






40. At the bottom of the ice sheets the temperature doesn't necessarily have to be above 0... it could _____ more easily because of the water






41. Thawing permafrost weakens coastal lands. Risk of flooding in coastal wetlands. Pollution and toxins locked in the snow and ice will be released.






42. 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.






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






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






45. Permafrost- A frozen soil






46. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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






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






49. Massive cooldown has allowed colder conditions to persist leading to cfcs stabilizing leading to ozone depletion. Later - more warming will lead to more moisture in the air which will lead to more snowfall!






50. 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.