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






2. Is best viewed as a combination of...- Natural Variability - Associated with atmospheric circulation patterns - Growing Radiative Forcing - Associated with rising concentrations of atmospheric greenhouse gases - Strongly suggests a human influence.






3. 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






4. Atmosphere retains ____ CO2






5. 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.






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






7. Warming- positive feedback - Cooling- negative feedback.






8. The buoyant force is equal to the weight of the displaced water.

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9. Antarctica - stratosphere - Sep-Oct






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






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






12. 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






13. Summer increase in cloud cover - Winter decrease in cloud cover.

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






15. Volcanic eruptions - Sunspots - Wobbly Earth






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






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






18. Radiation absorbed by atmospheric greenhouse gases?






19. 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%






20. 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!






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






22. Where do greenhouse gases warm up the Earth?






23. A climate forcing agent formed through the incomplete combustion of fossil fuels - biofuel - and biomass; emitted both anthropogenic:ally and naturally.






24. Forms in a mosaic of favoured locations.






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






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






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






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






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






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






31. In average: +1% in respect to 100 years ago.






32. LW - SW - 55% absorbed by surface






33. 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.






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






35. 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.






36. Amount of light absorbed by surface






37. Arctic troposphere is thinner (8-10 km) than the tropics...The depth of the atmospheric layer is much shallower in the Arctic - It takes less energy to warm the Arctic rather than the Tropics - Same as heating an apartment vs. a house






38. Grounding line is the last portion of a glacier grounded to bedrock - after this line there are ice shelves - Glaciers contribute to sea level rise after passing the grounding line - Maximum thinning at grounding line.






39. The major distinction between the Protocol and the Convention is that while the Convention encouraged industrialized countries to stabilize GHG emissions - the Protocol commits them to do so.






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






41. How much is the planet really warming?






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






43. 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.






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






45. A process whereby slabs of ice at the glacier margin mechanically fracture and detach from the main ice mass -






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






47. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






48. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






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






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