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. Permafrost- A frozen soil






2. Cooler water and drought conditions.






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






4. Soil at or below the freezing point of water for two or more years - Can be: Terrestrial - Subsea - Can be: Continuous: exists across a landscape as an unbroken layer. More than 90% is frozen - Discontinuous






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






6. 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.






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






8. 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






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






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






11. 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:






12. 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






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






14. 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






15. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






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






17. 10 : 1 - grounding ; surface






18. Where do greenhouse gases warm up the Earth?






19. Volcanic eruptions - Sunspots - Wobbly Earth






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






21. Set up in 1988 by WMO and UNEP.






22. The amount of light reflected by an object.






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






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






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






26. 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






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






28. How much is the planet really warming?






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






30. 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.






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






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






33. When meltwater seeps through a flowing glacier - it can lubricate the base and hasten the glacier's seaward flow.






34. 1.4 USA - 57 m total sea level equivalent






35. Antarctica - stratosphere - Sep-Oct






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






37. In average: +1% in respect to 100 years ago.






38. 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






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






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






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






42. How often does El Nio occur?






43. Total absorbed solar radiation






44. Heat is provided by outside sources that flow down the continental slope to reach the deepest part of the glacier. High pressure decreases the melting point and favors melting.






45. 1. Land usage changes 2. Seasonal timing 3. Rising CO2 levels may be a factor






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






47. Ice sheets have a very ____ Albedo






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






49. 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) -






50. Amount of light absorbed by atmosphere