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. 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.






2. Total absorbed solar radiation






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






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






5. 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






6. US is responsible for ___ of the total CO2






7. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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






9. Grounding line is the last portion of a glacier grounded to bedrock - after this line there are ice shelves - Glaciers contribute to sea level rise after passing the grounding line - Maximum thinning at grounding line.






10. Extent 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.






11. Wet gets _____ - dry gets ____ - Wet - 50ON (sub polar) Canada - N Europe - Russia - Tropical area- monsoon (rainforest) - Drier - Subtropics - Australia - S. Africa - Mediterranean - Caribbean - Mexico - SW US






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






13. Ocean retains ____ CO2






14. Under higher pressure the melting point decreases ____ - The pressure comes from the weight of the ice shelf.






15. A naturally or artificially caused decrease in the thickness and/or areal extent of permafrost - It is caused by the deepening fo the active layer and the thawing of the adjacent permafrost.






16. The last portion of a glacier grounded to bedrock - after this line there are ice shelves.






17. Land Based Ecosystems retain ____ CO2.






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






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






20. Refers to the irregular warming in the Sea Surface Temperatures (SST) from the coasts of Peru and Ecuador to the equatorial central Pacific - the Southern Oscillation






21. 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






22. Radiation absorbed by atmospheric greenhouse gases?






23. 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.






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






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






26. 1.4 USA - 57 m total sea level equivalent






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






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






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






30. Rainy on yearly average. In these regions - rising air predominates.






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






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






33. 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%






34. 85%






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






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






37. 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






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






39. 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.






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






41. Amount of light absorbed by surface






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






43. Less frequent and weaker






44. 1. They are the largest contributor to sea level rise 2. Can affect the thermohaline circulation (mainly in Greenland) 3. Are directly connected to climate change






45. Is unfrozen ground that is exposed to the ground surface and to a larger mass of unfrozen ground beneath it.






46. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






47. Amount of light absorbed by atmosphere






48. Greenhouse gases are mixed in the ____






49. Greenhouse gases are a ___ portion of the atmosphere






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