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






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






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






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






6. Greenhouse gases are mixed in the ____






7. 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






8. A mass of land ice - continental or sub-continental in extent - and thick enough to cover most of the underlying bedrock topography - If you have a warm ocean - it will melt the ice sheet. Its shape is mainly determined by the dynamics of its outward






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






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






11. 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






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






13. 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.






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






15. 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.






16. Melting Point decreases






17. Taliks are found under lakes because of the ability of water to store and vertically transfer heat energy - Vertical extent of the taliks found under lakes is related to the depth and volume of the overlying water body.






18. Thawing permafrost weakens coastal lands. Risk of flooding in coastal wetlands. Pollution and toxins locked in the snow and ice will be released.






19. x7 smaller - 7m total sea level equivalent.






20. 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.






21. Ocean retains ____ CO2






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






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






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






25. 10 : 1 - grounding ; surface






26. Number of days that land among the hottest of all days in that month's long-term record.






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






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






29. Tundra absorbs more energy than ice and snow but less than scrubs and forest - and with those plants migrating towards the north - they will further contribute ot absorb more energy.






30. 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.






31. 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






32. Really measures volume.






33. 1. They are the largest contributor to sea level rise 2. Can affect the thermohaline circulation (mainly in Greenland) 3. Are directly connected to climate change






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






35. Mass balance due to processes that affect the surface of the ice sheet. Precipitation-evapotranspiration-runoff-blowing snow etc...






36. 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






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






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






39. 1.4 USA - 57 m total sea level equivalent






40. How often does El Nio occur?






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






42. Measures input and output.






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






44. 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.






45. Radiation absorbed by atmospheric greenhouse gases?






46. They saw a massive thinning of the ice where it enters into the ocean - This is due to the pronounced melting of the ice once it is in contact with the ocean. Melt rates of 25 m/year near the grounding lines and more than 10 m/year on average.






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






48. ~15% of incident solar energy (albedo 85)






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






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