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. More common






2. 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.






3. 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






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






5. 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.






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






7. Just remember the general direction of the circulation - Rising northern pacific. You start in between Greenland and Europe (youngest water) - Oldest water is in the Pacific Ocean - Salty water> fresh water - Cold Water > Warm Water






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






9. 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






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






11. Ice sheets have a very ____ Albedo






12. Floating extensions are ice shelves - rivers of ice are ice streams or outlet glaciers - the junctions with the ocean are called the grounding line.






13. 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






14. Ocean retains ____ CO2






15. 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.






16. 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.






17. The Earth emits this.






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






19. Land Based Ecosystems retain ____ CO2.






20. Atmosphere retains ____ CO2






21. Cooler water and drought conditions.






22. Over the Northern Hemisphere than the tropics.






23. High clouds are a ____ feedback; larger greenhouse warming - Clouds reflect shortwave radiation but also absorb longwave radiation






24. Reduction of snow and ice cover - Changes in atmospheric circulation.






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






26. US is responsible for ___ of the total CO2






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






28. Trade winds blow from East to West - Pool of warm water in the west - Meanwhile deep colder water rises up in the Eastern Pacific - The sea level is ~ 50-60 cm higher in Western Pacific (Indonesia) than in the Eastern Pacific (South America/Peru) -






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






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






31. 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






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






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






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






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






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






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






38. By contrast reflects only about 7% of solar radiation (Albedo~7%) - absorbing 93%.






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






40. Radiation that comes from the Sun - Visible light - 'near infrared' - ultraviolet radiation.






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






42. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






43. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






44. Melting Point decreases






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






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






47. 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






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






49. Less frequent and weaker






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