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. An area of unfrozen ground that is open to the ground surface but otherwise enclosed in permafrost.






2. 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






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






4. Water vapor - 36-70% - carbon dioxide - 9-26% - methane - 4-9% - ozone - 3-7%






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






6. In ________- inversion layer is more common in the Arctic






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






8. 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.






9. LW - SW - 55% absorbed by surface






10. 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






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






12. Absolute thresholds - Monthly maximums and minimums - Threshold departures - Percentile departure - Atmospheric Water Vapor: More water vapor in the air - warmer nights!






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






14. 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.






15. 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






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






17. The warmer the temperature - the deeper the active layer - thaws and refreezes every year - Permafrost below freezing for two or more years.






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






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






20. Where does the ozone protect us?






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






22. 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






23. The last portion of a glacier grounded to bedrock - after this line there are ice shelves.






24. 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.






25. 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






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






27. 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.






28. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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






30. Set up in 1988 by WMO and UNEP.






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






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






33. Holds unique and key information - Are highly interconnected - Respond and drive climate change - Are the largest freshwater reservoirs of the planet - Ice cores tell us that in climate records - nothing is regular and ice sheet plays major role.






34. Temperature needed to melt at depth is much lower than that needed to melt at the surface.






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






36. 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!






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






38. The last portion of a glacier grounded to bedrock - after this line there are ice shelves.






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






40. he increase of ozone concentration in the atmosphere helps ____ our planet






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






42. 10 : 1 - grounding ; surface






43. Radiation absorbed by atmospheric greenhouse gases?






44. Much of the Arctic is overlain by snow and sea ice (land ice and sea ice) - It makes warming a much bigger deal in the Arctic






45. Ocean retains ____ CO2






46. US is responsible for ___ of the total CO2






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






48. Sea ice - Continental ice sheets - Permafrost (frozen soil) - Mountain glaciers - Snow cover






49. Forms in a mosaic of favoured locations.






50. Industry 40% - Buildings 31% - Transportations 22% - Agriculture 4%