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






2. 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






3. 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.






4. 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.






5. 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.






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






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






8. 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






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






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






11. Melting Point decreases






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






13. Number of days when temperatures climb above average by a fixed amount.






14. Occurs when there is not enough water available for a particular crop to grow at a particular time.Typically seen after!meteorological drought (when rainfall decreases) but before a hydrological drought






15. Like weighing oneself on the scale.






16. Slow steady decline of about 4% per decade in the total volume of Earth's stratospheric ozone.






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






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






19. Atmosphere retains ____ CO2






20. US is responsible for ___ of the total CO2






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






22. 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.






23. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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24. Amount of light absorbed by surface






25. Higher temperature increases atmospheric water vapor @ global scale more water vapor in the air that causes nights to stay warmer.






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






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






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






29. 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






30. Over the Northern Hemisphere than the tropics.






31. Measures input and output.






32. 10 : 1 - grounding ; surface






33. ~15% of incident solar energy (albedo 85)






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






35. 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






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






37. 85%






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






39. 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






40. Radiation that comes from the Sun - Visible light - 'near infrared' - ultraviolet radiation.






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






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






43. Trade winds blow from East to West - Pool of warm water in the west - Meanwhile deep colder water rises up in the Eastern Pacific - The sea level is ~ 50-60 cm higher in Western Pacific (Indonesia) than in the Eastern Pacific (South America/Peru) -






44. 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






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






46. 1.4 USA - 57 m total sea level equivalent






47. Precipitation intensity will rise ___ for every 1 OC of warming.






48. Amount of light absorbed by atmosphere






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






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