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






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






3. 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.






4. Troposphere - Stratosphere (Ozone Layer) - Mesosphere - Ionosphere






5. The amount of light reflected by an object.






6. Measures input and output.






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






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






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






10. he increase of ozone concentration in the atmosphere helps ____ our planet






11. 1.4 USA - 57 m total sea level equivalent






12. SMB- mass balance due to processes that affect the surface of the ice sheet. Precipitation- evapotranspiration-runoff-blowing snow etc.






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






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






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






16. 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.






17. 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.






18. Cooler water and drought conditions.






19. The Earth emits this.






20. Volcanic eruptions - Sunspots - Wobbly Earth






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






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






23. Melting Point decreases






24. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






25. Concentration of 380 ppmv - Have risen about 40% - Preindustrial~ 270~280 ppmv






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






27. 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






28. How much is the planet really warming?






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






30. If the Earth is warmer - are we going to have the Hadley cell stronger or weaker? Hotter = heat rises which increases the circulation.






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






32. The transition of a substance from the solid phase directly to the vapor phase - or vice versa - without passing through an intermediate liquid phase.






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






34. 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.






35. Ice flowing from the middle of Greenland to the edges and melting. 90 feet a day- speed that ice is moving.






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






37. 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






38. 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






39. Where does the ozone protect us?






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






41. 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






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






43. Radiation absorbed by atmospheric greenhouse gases?






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






45. Permafrost- A frozen soil






46. When meltwater seeps through a flowing glacier - it can lubricate the base and hasten the glacier's seaward flow.






47. 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






48. If the mean annual air temperature is only slightly below 0 degrees C - permafrost will form only in spots that are sheltered.






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






50. Number of days that exceed a given temperature