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. Less frequent and weaker






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






3. What can cause a change in the Earth's climate balance?






4. Set up in 1988 by WMO and UNEP.






5. Arctic warms faster than other parts of the globe in response to a given increase in greenhouse gasses - More direct route to warming - In the Arctic a greater fraction of any increase in radiation absorbed by the surface goes directly into warming t






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






7. 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






8. Greenhouse gases are a ___ portion of the atmosphere






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

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






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






12. 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.






13. 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






14. Total absorbed solar radiation






15. 1. Land usage changes 2. Seasonal timing 3. Rising CO2 levels may be a factor






16. The order of 1 m/year. Melting is ten times more.






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






18. Volcanic eruptions - Sunspots - Wobbly Earth






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






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






21. Like weighing oneself on the scale.






22. 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.






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






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






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






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






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






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






29. x7 smaller - 7m total sea level equivalent.






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






31. 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






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






33. 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






34. Radiation absorbed by atmospheric greenhouse gases?






35. Ice sheets have a very ____ Albedo






36. Carbon dioxide - Methane - Ozone - Water Vapor - Few others - Most ___________________ are mixed in the troposphere (Except water vapor) - Water vapor is concentrated closer to the ground.






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






38. Warming- positive feedback - Cooling- negative feedback.






39. 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






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






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






42. Due to a set of mutually reinforcing processes - climate change appears to be progressing in the arctic more quickly than in any other region on Earth.






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






44. Peru and Ecuador to the equatorial central pacific - Causes irregular warming in sea surface






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

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






47. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






48. Absolute thresholds - Monthly maximums and minimums - Threshold departures - Percentile departure - Atmospheric Water Vapor: More water vapor in the air - warmer nights!






49. 10 : 1 - grounding ; surface






50. 240 w/m squared