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. The past climate...for this reason - both keep good records of climate change.






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






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






4. 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.






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






6. CO2 GHG forcing - H2O - dominant/major GHG






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






8. Land Based Ecosystems retain ____ CO2.






9. This is the total mass change - difference between input and outputs—snow accumulation-ablation.






10. 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.






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






12. 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.






13. Amount of light absorbed by atmosphere






14. Where do greenhouse gases warm up the Earth?






15. Measures input and output.






16. 1.4 USA - 57 m total sea level equivalent






17. 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%






18. 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






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






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






21. Peru and Ecuador to the equatorial central pacific - Causes irregular warming in sea surface






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






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






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






25. The air can hold less water vapor - Consequently - less water can be evaporated in the air - and only a small portion of energy is used in this process - Most of the energy that reaches the Arctic goes directly into warming the air






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






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






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






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






30. How much is the planet really warming?






31. LW - SW - 55% absorbed by surface






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






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






34. Deep tropics between 15O N and 15 O S are quite rainy on yearly average. In these regions - rising air predominates.






35. Like weighing oneself on the scale.






36. More common






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






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






39. 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






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






41. Ice flowing from the middle of Greenland to the edges and melting. 90 feet a day- speed that ice is moving.






42. ~15% of incident solar energy (albedo 85)






43. InSAR - +snow/-ice loss - ice dynamics - requires a lot of data.






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






46. 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






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






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






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






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