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






2. Number of days that exceed a given temperature






3. Greenhouse gases are mixed in the ____






4. Amount of light absorbed by atmosphere






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






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






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






8. 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






9. The Earth emits this.






10. 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






11. Like weighing oneself on the scale.






12. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.






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






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






15. Help darkens the snow and ice surface - increasing the amount of energy that is absorbed.






16. 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






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. Volcanic eruptions - Sunspots - Wobbly Earth






19. Less frequent and weaker






20. 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






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






22. 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






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






24. 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






25. Permafrost- A frozen soil






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






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






28. Ocean retains ____ CO2






29. 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.






30. Radiation absorbed by atmospheric greenhouse gases?






31. 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






32. O Unfrozen soil that stays within the permafrost.






33. 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!






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






35. Sea ice - Glaciers and Ice sheets - Alaska- ice glaciers - Greenland- ice sheets






36. 1.4 USA - 57 m total sea level equivalent






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






38. Pockets of ice in the topmost permafrost caused by thawing which create an underground lake.






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






40. 1. Altimetry survey 2. Time-variable gravity 3. Ice motion + Regional Climate Modeling






41. High vs low






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






43. Higher temperature increases atmospheric water vapor @ global scale more water vapor in the air that causes nights to stay warmer.






44. 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.






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






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






47. 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






48. 85%






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






50. Forms from frozen ocean water - Floats on the ocean surface - Grows over the winter - melts in the summer