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. 1.4 USA - 57 m total sea level equivalent






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






3. 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.






4. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






5. Reduction of Summer Sea- will increase the warming because less energy will be reflected back to the atmosphere by the ice and more will be absorbed by the ocean - Snow and snow covered ice absorb 15% of incident solar energy - Ice absorbs 10% of inc






6. Less frequent and weaker






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






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






9. 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.






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






11. 240 w/m squared






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






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






14. Amount of light absorbed by surface






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






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






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






18. 10 : 1 - grounding ; surface






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






20. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






21. Trade winds blow from East to West - Pool of warm water in the west - Meanwhile deep colder water rises up in the Eastern Pacific - The sea level is ~ 50-60 cm higher in Western Pacific (Indonesia) than in the Eastern Pacific (South America/Peru) -






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

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23. 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.






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






25. Greenhouse gases are mixed in the ____






26. The past climate...for this reason - both keep good records of climate change.






27. When meltwater seeps through a flowing glacier - it can lubricate the base and hasten the glacier's seaward flow.






28. CO2 GHG forcing - H2O - dominant/major GHG






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






30. 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






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






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. Descending Air dry - Convection cells are wet.






34. More common






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






36. A dome shaped cover of perennial ice and snow.






37. Industry 40% - Buildings 31% - Transportations 22% - Agriculture 4%






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






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






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






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






42. 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






43. Radiation absorbed by atmospheric greenhouse gases?






44. 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.






45. 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






46. Greenhouse gases are a ___ portion of the atmosphere






47. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






48. Atmosphere retains ____ CO2






49. 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.






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