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

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






3. In troposphere = greenhouse warming gas - However - most of it is in the stratosphere.






4. Warming- positive feedback - Cooling- negative feedback.






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






6. SMB- mass balance due to processes that affect the surface of the ice sheet. Precipitation- evapotranspiration-runoff-blowing snow etc.






7. Greenhouse gases are mixed in the ____






8. Number of days that exceed a given temperature






9. Amount of light absorbed by surface






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






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






12. The difference between the incoming radiation energy and the outgoing radiation energy - A measure of the net energy.






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






14. Ocean retains ____ CO2






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






16. 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.






17. 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






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






19. 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.






20. 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






21. Where do greenhouse gases warm up the Earth?






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






23. Like weighing oneself on the scale.






24. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






25. Over the Northern Hemisphere than the tropics.






26. Closed talik can develop when lakes fill in with sediment and become deposits of dead plant material (bog).






27. 10 : 1 - grounding ; surface






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






29. How often does El Nio occur?






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






31. Amount of light absorbed by atmosphere






32. A climate forcing agent formed through the incomplete combustion of fossil fuels - biofuel - and biomass; emitted both anthropogenic:ally and naturally.






33. They saw a massive thinning of the ice where it enters into the ocean - This is due to the pronounced melting of the ice once it is in contact with the ocean. Melt rates of 25 m/year near the grounding lines and more than 10 m/year on average.






34. 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.






35. Holds unique and key information - Are highly interconnected - Respond and drive climate change - Are the largest freshwater reservoirs of the planet - Ice cores tell us that in climate records - nothing is regular and ice sheet plays major role.






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






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






38. 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) -






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






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






41. 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.






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






43. 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%






44. ~15% of incident solar energy (albedo 85)






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






46. Ice melting rapidly? What type causes sea level to rise? What have been the main contributors to sea level rise so far? What are the impacts of melting ice? - On nature - On humans






47. Pockets of ice in the topmost permafrost caused by thawing which create an underground lake.






48. 240 w/m squared






49. In _______ - the inversions are less frequent and weaker in the Arctic.






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