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






2. Where does the ozone protect us?






3. ~15% of incident solar energy (albedo 85)






4. 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






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






6. Water vapor - 36-70% - carbon dioxide - 9-26% - methane - 4-9% - ozone - 3-7%






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






8. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






9. 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.






10. Sea ice extent in Antarctica is rapidly reducing. Seasonal variability. People - Animals and Ice






11. 85%






12. 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.






13. Just remember the general direction of the circulation - Rising northern pacific. You start in between Greenland and Europe (youngest water) - Oldest water is in the Pacific Ocean - Salty water> fresh water - Cold Water > Warm Water






14. 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:






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






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






17. he increase of ozone concentration in the atmosphere helps ____ our planet






18. The amount of light reflected by an object.






19. ~10% of incident solar energy (albedo 90)






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






21. How much is the planet really warming?






22. 1.4 USA - 57 m total sea level equivalent






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






24. 10 : 1 - grounding ; surface






25. US is responsible for ___ of the total CO2






26. How often does El Nio occur?






27. Over the Northern Hemisphere than the tropics.






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






29. Amount of light absorbed by surface






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






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






32. 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.






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






34. Amount of light absorbed by atmosphere






35. 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






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

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37. Top layer of soil that thaws during the summer and freezes again during autumn. - Between 1 and 3 m thick.






38. High vs low






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






40. Refers to a body of freshwater - usually shallow - formed in a depression by melt water from thawing permafrost.






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






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






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






44. Arctic troposphere is thinner (8-10 km) than the tropics...The depth of the atmospheric layer is much shallower in the Arctic - It takes less energy to warm the Arctic rather than the Tropics - Same as heating an apartment vs. a house






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






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






47. Changes in the Earth's solar radiation levels can impact the climate. Shortterm warming cycles on Earth.






48. Laser radar - H V - Long time series - high accuracy - Density






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






50. Changes over time in the highest and lowest single temperature observed during a given month of the year.