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. x7 smaller - 7m total sea level equivalent.






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






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






4. High vs low






5. Total absorbed solar radiation






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






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






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. Melting Point decreases






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






11. How often does El Nio occur?






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






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

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






15. Descending Air dry - Convection cells are wet.






16. Long time series started in the '70s and yielding good data in the '90s - Detects elevation with high accuracy: 10 cm precision (laser) to 1 m (radar) - 2/3 Gravity Surveys (GRACE) - Weighing the total mass every 30 days - Direct monthly estimate






17. 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.






18. 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.






19. Temperature needed to melt at depth is much lower than that needed to melt at the surface.






20. Volcanic eruptions - Sunspots - Wobbly Earth






21. All processes that add snow or ice to a glacier or to flowing ice or snow cover.






22. 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






23. US is responsible for ___ of the total CO2






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






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






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






27. CO2 - CH4 - O3 - H2O - N2O - CFCs






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






29. 240 w/m squared






30. 1. We live in troposphere. Greenhouse gases here warm up the Earth 2. Above stratosphere. The ozone in this layer protects us.






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






32. 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






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






34. Number of days that exceed a given temperature






35. Radiation absorbed by atmospheric greenhouse gases?






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






37. Frozen +2 years - Few centimeters to 1500 m






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






39. The warmer the temperature - the deeper the active layer - thaws and refreezes every year - Permafrost below freezing for two or more years.






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






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






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






43. 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.






44. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






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






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






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






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






49. 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.






50. 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: