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






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






3. 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.






4. High cloud has a _____ effect and cool cloud has a ____ effect






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






6. More common






7. US is responsible for ___ of the total CO2






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






9. Warming- positive feedback - Cooling- negative feedback.






10. How much is the planet really warming?






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






12. The depletion of stratospheric ozone layer in Antarctica in Springtime (august through October)






13. 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!






14. Frozen +2 years - Few centimeters to 1500 m






15. 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%






16. Forms from frozen ocean water - Floats on the ocean surface - Grows over the winter - melts in the summer






17. 240 w/m squared






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






19. Betts et al found that: if CO-2 __________ this has a physiological effect on plant transpiration increased simulated runoff by 6% b. How? i. More CO2 1. Plants pores open less 2. This reduces transpiration 3. More water in the land surface






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






21. 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






22. Industrial product - 300 ppb (parts per billion)






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






24. 10 : 1 - grounding ; surface






25. 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.






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






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






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






29. O Unfrozen soil that stays within the permafrost.






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






31. Atmosphere retains ____ CO2






32. Where do greenhouse gases warm up the Earth?






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






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






35. Some parts of the planet are dry because of their location: most of the deserts are around 30 N and 30 S - where sinking air predominates






36. Troposphere - Stratosphere (Ozone Layer) - Mesosphere - Ionosphere






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






38. 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






39. 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






40. 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.






41. Land Based Ecosystems retain ____ CO2.






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






43. ~10% of incident solar energy (albedo 90)






44. 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






45. The Earth emits this.






46. 1.4 USA - 57 m total sea level equivalent






47. A process whereby slabs of ice at the glacier margin mechanically fracture and detach from the main ice mass -






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






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






50. Radiation absorbed by atmospheric greenhouse gases?







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