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. Most of the deserts are around 30 N and 30 S - where sinking air predominates






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






3. Absolute thresholds - Monthly maximums and minimums - Threshold departures - Percentile departure - Atmospheric Water Vapor: More water vapor in the air - warmer nights!






4. 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






5. 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






6. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






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






8. Climate models suggest once the sea ice cover is thinned sufficiently - a strong kick from natural variability could initiate a rapid slide towards ice-free conditions in the summer.






9. LW - SW - 55% absorbed by surface






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






11. Occurs when there is not enough water available for a particular crop to grow at a particular time.Typically seen after!meteorological drought (when rainfall decreases) but before a hydrological drought






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






13. 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






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






15. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






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






17. 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.






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

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19. Average molecular life span is less than 10 years - Major sources: Wetlands and oceans - Raising cattle and landfills.






20. 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






21. 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






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






23. Really measures volume.






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






25. 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.






26. Greenhouse gases are a ___ portion of the atmosphere






27. Greenhouse gases are mixed in the ____






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






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






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






31. Refers to the irregular warming in the Sea Surface Temperatures (SST) from the coasts of Peru and Ecuador to the equatorial central Pacific - the Southern Oscillation






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






33. InSAR - +snow/-ice loss - ice dynamics - requires a lot of data.






34. 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.






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






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






37. This is the total mass change - difference between input and outputs—snow accumulation-ablation.






38. 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






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






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






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






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






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






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






45. Ice sheets have a very ____ Albedo






46. Amount of light absorbed by atmosphere






47. Tundra absorbs more energy than ice and snow but less than scrubs and forest - and with those plants migrating towards the north - they will further contribute ot absorb more energy.






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






49. 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.






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