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. Most of the deserts are around 30 N and 30 S - where sinking air predominates






2. 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.






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






4. Heat is provided by outside sources that flow down the continental slope to reach the deepest part of the glacier. High pressure decreases the melting point and favors melting.






5. 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) -






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






7. Precipitation extremes appear to generally increase across the planet at especially high latitudes.






8. 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






9. Warming- positive feedback - Cooling- negative feedback.






10. US is responsible for ___ of the total CO2






11. Where do greenhouse gases warm up the Earth?






12. 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






13. Occurs when there is not enough water available for a particular crop to grow at a particular time.Typically seen after!meteorological drought (when rainfall decreases) but before a hydrological drought






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






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






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






17. 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






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






19. At the bottom of the ice sheets the temperature doesn't necessarily have to be above 0... it could _____ more easily because of the water






20. 240 w/m squared






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






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






23. 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.






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






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






26. Atmosphere retains ____ CO2






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






28. Melting Point decreases






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






30. Ice sheets have a very ____ Albedo






31. 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.






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






33. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






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






35. 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.






36. Reduction of Summer Sea- 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 - Snow and snow covered ice absorb 15% of incident solar energy - Ice absorbs 10% of inc






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






38. 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.






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






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






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






42. Measures input and output.






43. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.


44. 1. We live in troposphere. Greenhouse gases here warm up the Earth 2. Above stratosphere. The ozone in this layer protects us.






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






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






47. 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.






48. 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






49. 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






50. O Unfrozen soil that stays within the permafrost.