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. Arctic warms faster than other parts of the globe in response to a given increase in greenhouse gasses - More direct route to warming - In the Arctic a greater fraction of any increase in radiation absorbed by the surface goes directly into warming t






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






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






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






5. LW - SW - 55% absorbed by surface






6. 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






7. Number of days that exceed a given temperature






8. The large-scale ocean circulation that moves water between the deep and surface ocean which effects salinity and temperature change - Supplies heat to the polar-regions.






9. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






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






11. Less frequent and weaker






12. Over the Northern Hemisphere than the tropics.






13. Where does the ozone protect us?






14. 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.






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






16. Where do greenhouse gases warm up the Earth?






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






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


19. 240 w/m squared






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






21. 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.






22. How much is the planet really warming?






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






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






25. Amount of light absorbed by surface






26. Floating extensions are ice shelves - rivers of ice are ice streams or outlet glaciers - the junctions with the ocean are called the grounding line.






27. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






28. 10 : 1 - grounding ; surface






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






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






31. US is responsible for ___ of the total CO2






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






33. 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.






34. Deep tropics between 15O N and 15 O S are quite rainy on yearly average. In these regions - rising air predominates.






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






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






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






38. 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






39. 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%






40. By contrast reflects only about 7% of solar radiation (Albedo~7%) - absorbing 93%.






41. 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






42. Warming- positive feedback - Cooling- negative feedback.






43. Surface Mass Balance is of the order of _____ melting is ____ times more.






44. 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






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






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






47. Measures input and output.






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






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






50. 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.