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






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






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






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






5. Warming- positive feedback - Cooling- negative feedback.






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






7. Ice sheets have a very ____ Albedo






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






9. Reduction of Summer Sea- 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 - Snow and snow covered ice absorb 15% of incident solar energy - Ice absorbs 10% of inc






10. 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






11. Atmosphere retains ____ CO2






12. 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






13. 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






14. US is responsible for ___ of the total CO2






15. Where do greenhouse gases warm up the Earth?






16. Really measures volume.






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






18. SALTY WATER = MORE DENSE - Maximum density at 4OC - This is why ice melting is a big deal; if the whole circle slows down - Ice bergs are fresh water higher sea level rise.






19. Changes over time in the highest and lowest single temperature observed during a given month of the year.






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






21. Amount of light absorbed by atmosphere






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






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






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






25. Permafrost- A frozen soil






26. Clouds 40~90% - Vegetation 10~15%






27. Precipitation intensity will rise ___ for every 1 OC of warming.






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






29. 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






30. Laser radar - H V - Long time series - high accuracy - Density






31. Poor resolution (200-400 km) does not allow us to distinguish glaciers and basins.






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






33. Where does the ozone protect us?






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






35. 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.






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






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






38. Over the Northern Hemisphere than the tropics.






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






40. 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.






41. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






42. Descending Air dry - Convection cells are wet.






43. Less frequent and weaker






44. Ozone layer in high stratosphere (25-40 km altitude) absorbs about 95-99% of ultraviolet radiation.






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






46. LW - SW - 55% absorbed by surface






47. 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






48. Massive cooldown has allowed colder conditions to persist leading to cfcs stabilizing leading to ozone depletion. Later - more warming will lead to more moisture in the air which will lead to more snowfall!






49. ~15% of incident solar energy (albedo 85)






50. 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.