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. 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!






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






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






4. Number of days when temperatures climb above average by a fixed amount.






5. Total absorbed solar radiation






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






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






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






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






10. The transition of a substance from the solid phase directly to the vapor phase - or vice versa - without passing through an intermediate liquid phase.






11. Low clouds are a ____ feedback; they will reflect more sunlight. Clouds reflect shortwave radiation but also absorb longwave radiation






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






13. Climate models suggest once the sea ice cover is thinned sufficiently - a strong kick from natural variability could initiate a rapid slide towards ice-free conditions in the summer.






14. Volcanic eruptions - Sunspots - Wobbly Earth






15. High vs low






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






17. Surface Mass Balance is of the order of _____ melting is ____ times more.






18. Is not an externally imposed perturbation to the climate system.






19. Set up in 1988 by WMO and UNEP.






20. Less frequent and weaker






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






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






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






24. Water vapor means more water up in the clouds and less in the ground!






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






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






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






28. 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






29. LW - SW - 55% absorbed by surface






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






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






32. 10 : 1 - grounding ; surface






33. Arctic warms faster than other parts of the globe in response to a given increase in greenhouse gasses - More direct route to warming - In the Arctic a greater fraction of any increase in radiation absorbed by the surface goes directly into warming t






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






35. 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.






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






37. 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






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






39. 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






40. Where does the ozone protect us?






41. 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






42. ~10% of incident solar energy (albedo 90)






43. Descending Air dry - Convection cells are wet.






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






45. On a clear cold day - the thin layer of air hugging the ground is called inversion. This layer is much cooler than the air a few hundred meters above it.






46. 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






47. 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.






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






49. Greenhouse gases are mixed in the ____






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