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. Higher temperature increases atmospheric water vapor @ global scale more water vapor in the air that causes nights to stay warmer.






2. Cooler water and drought conditions.






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






4. 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.






5. 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%






6. Same amount of H2O - Mass does not change - Density of ice < density of water - Volume of ice > volume of water






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






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






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






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






11. Precipitation extremes appear to generally increase across the planet at especially high latitudes.






12. 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.






13. Greenhouse gases are a ___ portion of the atmosphere






14. Sea ice - Glaciers and Ice sheets - Alaska- ice glaciers - Greenland- ice sheets






15. Amount of light absorbed by atmosphere






16. O Unfrozen soil that stays within the permafrost.






17. 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:






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






19. 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.






20. 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






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






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






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






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






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






26. Warming- positive feedback - Cooling- negative feedback.






27. How often does El Nio occur?






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






29. The amount of light reflected by an object.






30. 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.






31. Positive Albedo Feedback - increase in temperature melts ice and snow reduces albedo increases temperature melts ice and snow reduces albedo... ETC






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






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






34. Greenhouse gases are mixed in the ____






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






36. 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






37. Some parts of the planet are dry because of their location: most of the deserts are around 30 N and 30 S - where sinking air predominates






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






39. Where do greenhouse gases warm up the Earth?






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






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

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42. Radiation absorbed by atmospheric greenhouse gases?






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






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






45. x7 smaller - 7m total sea level equivalent.






46. Ocean retains ____ CO2






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






48. The Day After Tomorrow - Circulation will slow by 10% to 50% in the next century






49. The order of 1 m/year. Melting is ten times more.






50. 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