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. 240 w/m squared






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






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






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






5. Permafrost- A frozen soil






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






7. Volcanic eruptions - Sunspots - Wobbly Earth






8. Heat is provided by outside sources that flow down the continental slope to reach the deepest part of the glacier. High pressure decreases the melting point and favors melting.






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






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






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






12. Greenhouse gases are a ___ portion of the atmosphere






13. Reduction of snow and ice cover - Changes in atmospheric circulation.






14. High vs low






15. 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






16. 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






17. Where do greenhouse gases warm up the Earth?






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






19. Set up in 1988 by WMO and UNEP.






20. How often does El Nio occur?






21. Amount of light absorbed by atmosphere






22. 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






23. Clouds 40~90% - Vegetation 10~15%






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






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






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






27. Wet gets _____ - dry gets ____ - Wet - 50ON (sub polar) Canada - N Europe - Russia - Tropical area- monsoon (rainforest) - Drier - Subtropics - Australia - S. Africa - Mediterranean - Caribbean - Mexico - SW US






28. LW - SW - 55% absorbed by surface






29. ~10% of incident solar energy (albedo 90)






30. CO2 ____ in winter in the NH and ____ decreases during the 'greening season'






31. Climate models suggest once the sea ice cover is thinned sufficiently - a strong kick from natural variability could initiate a rapid slide towards ice-free conditions in the summer.






32. Closed talik can develop when lakes fill in with sediment and become deposits of dead plant material (bog).






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






34. Unfrozen ground that is found within a mass of permafrost






35. 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






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






37. Forms in a mosaic of favoured locations.






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






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






40. 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






41. 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.






42. 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






43. Descending Air dry - Convection cells are wet.






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






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






46. 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.






47. Total absorbed solar radiation






48. Antarctica - stratosphere - Sep-Oct






49. Warming- positive feedback - Cooling- negative feedback.






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