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






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






3. 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






4. Massive cooldown has allowed colder conditions to persist leading to cfcs stabilizing leading to ozone depletion. Later - more warming will lead to more moisture in the air which will lead to more snowfall!






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






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






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






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






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






10. Average molecular life span is less than 10 years - Major sources: Wetlands and oceans - Raising cattle and landfills.






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






12. Measures input and output.






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






14. 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






15. Longwave radiation - any radiation with a long wave will heat up quickly.






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






17. The depletion of stratospheric ozone layer in Antarctica in Springtime (august through October)






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






19. Warming- positive feedback - Cooling- negative feedback.






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






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






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






23. 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






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






25. Set up in 1988 by WMO and UNEP.






26. They saw a massive thinning of the ice where it enters into the ocean - This is due to the pronounced melting of the ice once it is in contact with the ocean. Melt rates of 25 m/year near the grounding lines and more than 10 m/year on average.






27. The difference between the incoming radiation energy and the outgoing radiation energy - A measure of the net energy.






28. Ice sheets have a very ____ Albedo






29. 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






30. 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.






31. 85%






32. 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






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






34. High vs low






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






36. Where does the ozone protect us?






37. A climate forcing agent formed through the incomplete combustion of fossil fuels - biofuel - and biomass; emitted both anthropogenic:ally and naturally.






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






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






40. 1.4 USA - 57 m total sea level equivalent






41. The Earth emits this.






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






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






44. 1. Altimetry survey 2. Time-variable gravity 3. Ice motion + Regional Climate Modeling






45. Antarctica - stratosphere - Sep-Oct






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






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






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






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






50. 78% nitrogen - 28% oxygen - Greenhouse gases: Have a more complex molecular structure and can absorb and re:radiate heat in all directions.