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






2. LW - SW - 55% absorbed by surface






3. Total absorbed solar radiation






4. Fresh snow and snow-covered sea ice may have an albedo higher than 80% - even when melting in the summer. Sea ice has a higher albedo and can absorb as little as 10% of the solar energy. On average - sea ice albedo is around 85%






5. The Earth emits this.






6. Really measures volume.






7. 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.






8. 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






9. All processes that add snow or ice to a glacier or to flowing ice or snow cover.






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






11. Low clouds are a ____ feedback; they will reflect more sunlight. Clouds reflect shortwave radiation but also absorb longwave radiation






12. How much is the planet really warming?






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






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






15. 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






16. 1. Keeps the ocean and the earth cooler 2. Coastal impacts of ice: prevents waves from eroding coastlines and protects from storms. 3. Ecological importance of ice: a. Most visibly for the many fish - birds - and mammal species that live in - on - or






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






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






19. Laser radar - H V - Long time series - high accuracy - Density






20. US is responsible for ___ of the total CO2






21. 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






22. InSAR - +snow/-ice loss - ice dynamics - requires a lot of data.






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






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






25. Is unfrozen ground that is exposed to the ground surface and to a larger mass of unfrozen ground beneath it.






26. Warming- positive feedback - Cooling- negative feedback.






27. Under higher pressure the melting point decreases ____ - The pressure comes from the weight of the ice shelf.






28. 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






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






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






31. 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






32. 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.






33. 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.






34. 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






35. Antarctica - stratosphere - Sep-Oct






36. Greenhouse gases are a ___ portion of the atmosphere






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






38. 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) -






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






40. Like weighing oneself on the scale.






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






42. Greenhouse gases are mixed in the ____






43. 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!






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






45. Over the Northern Hemisphere than the tropics.






46. Water vapor means more water up in the clouds and less in the ground!






47. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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48. Atmosphere retains ____ CO2






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






50. Radiation absorbed by atmospheric greenhouse gases?