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






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






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






5. Amount of light absorbed by surface






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






7. 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






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






9. The Earth emits this.






10. The warmer the temperature - the deeper the active layer - thaws and refreezes every year - Permafrost below freezing for two or more years.






11. 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.






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






13. Greenhouse gases are a ___ portion of the atmosphere






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






15. ~15% of incident solar energy (albedo 85)






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






17. 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.






18. Hydrological drought is associated with the effect of low rainfall on water levels in rivers -!reservoirs -!lakes and aquifers.






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






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






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






22. 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.






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






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






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






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






27. Deep tropics between 15O N and 15 O S are quite rainy on yearly average. In these regions - rising air predominates.






28. A thick - floating slab of freshwater ice extending from coast to coast.






29. 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






30. 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






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. The large-scale ocean circulation that moves water between the deep and surface ocean which effects salinity and temperature change - Supplies heat to the polar-regions.






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






34. High cloud has a _____ effect and cool cloud has a ____ effect






35. Betts et al found that: if CO-2 __________ this has a physiological effect on plant transpiration increased simulated runoff by 6% b. How? i. More CO2 1. Plants pores open less 2. This reduces transpiration 3. More water in the land surface






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






37. 240 w/m squared






38. Ice melting rapidly? What type causes sea level to rise? What have been the main contributors to sea level rise so far? What are the impacts of melting ice? - On nature - On humans






39. 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






40. 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.






41. Descending Air dry - Convection cells are wet.






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






43. Nitrogen (N2 78%) and Oxygen (O2 21%) - Their linear 2 atom molecular structure






44. ~10% of incident solar energy (albedo 90)






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






46. High vs low






47. Ozone layer in high stratosphere (25-40 km altitude) absorbs about 95-99% of ultraviolet radiation.






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






49. 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.






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