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. Nitrogen (N2 78%) and Oxygen (O2 21%) - Their linear 2 atom molecular structure






2. Pollution: heat and sunlight cook the air and the chemical compounds which are in it. This combines with the nitrogen oxide and creates 'smog'. This makes breathing difficult for those with respiratory ailments.






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






4. 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!






5. Volcanic eruptions - Sunspots - Wobbly Earth






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






7. 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






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. 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






10. Greenhouse gases are mixed in the ____






11. O Climate change in the Arctic is occurring now - Changes have been huge already






12. Like weighing oneself on the scale.






13. Unfrozen ground that is found within a mass of permafrost






14. SMB- mass balance due to processes that affect the surface of the ice sheet. Precipitation- evapotranspiration-runoff-blowing snow etc.






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






16. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






17. Where does the ozone protect us?






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






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






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






21. Same as heating an apartment v home - Thinner atmosphere than tropics; warms faster.






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






23. The Day After Tomorrow - Circulation will slow by 10% to 50% in the next century






24. 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) -






25. ~10% of incident solar energy (albedo 90)






26. 240 w/m squared






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






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






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






30. Descending Air dry - Convection cells are wet.






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






32. Long time series started in the '70s and yielding good data in the '90s - Detects elevation with high accuracy: 10 cm precision (laser) to 1 m (radar) - 2/3 Gravity Surveys (GRACE) - Weighing the total mass every 30 days - Direct monthly estimate






33. Over the Northern Hemisphere than the tropics.






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






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






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






37. Melting Point decreases






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






39. O Unfrozen soil that stays within the permafrost.






40. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






41. 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






42. 10 : 1 - grounding ; surface






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






44. A naturally or artificially caused decrease in the thickness and/or areal extent of permafrost - It is caused by the deepening fo the active layer and the thawing of the adjacent permafrost.






45. Ice sheets have a very ____ Albedo






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






47. Greenhouse gases are a ___ portion of the atmosphere






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






49. Antarctica - stratosphere - Sep-Oct






50. Deep tropics between 15O N and 15 O S are quite rainy on yearly average. In these regions - rising air predominates.