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. 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.






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






3. Top layer of soil that thaws during the summer and freezes again during autumn. - Between 1 and 3 m thick.






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






5. Total absorbed solar radiation






6. Atmospheric Cooling - Both negative (stabilizing) feedbacks - It is not happening now - but it has happened in the past - Ice-albedo feedback was the dominant feedback during the ice ages.






7. 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.






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






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






10. When inversion breaks up _______________. - Consequently - anything that breaks inversions or makes them form less often could produce major ground level warming.






11. In _______ - the inversions are less frequent and weaker in the Arctic.






12. O The amount of energy moving in the form of photons or other elementary particles at a certain distance from the source per unit of area per second. Area/second






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






14. Surface Mass Balance is of the order of _____ melting is ____ times more.






15. Less frequent and weaker






16. 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.






17. The buoyant force is equal to the weight of the displaced water.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






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






20. Greenhouse gases are a ___ portion of the atmosphere






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






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






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






24. Set up in 1988 by WMO and UNEP.






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






26. Forms from frozen ocean water - Floats on the ocean surface - Grows over the winter - melts in the summer






27. 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!






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






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






30. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






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






32. 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






33. 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.






34. 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.






35. Soil at or below the freezing point of water for two or more years - Can be: Terrestrial - Subsea - Can be: Continuous: exists across a landscape as an unbroken layer. More than 90% is frozen - Discontinuous






36. SALTY WATER = MORE DENSE - Maximum density at 4OC - This is why ice melting is a big deal; if the whole circle slows down - Ice bergs are fresh water higher sea level rise.






37. Greenhouse gases are mixed in the ____






38. 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






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






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






41. ~15% of incident solar energy (albedo 85)






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






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






44. Grace - Tells us how much mass change we have - M - This is the measure of gravity (gives us the mass) - Directly measure mass change - Poor resolution






45. Volcanic eruptions - Sunspots - Wobbly Earth






46. More common






47. Land Based Ecosystems retain ____ CO2.






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






49. Number of days that land among the hottest of all days in that month's long-term record.






50. Thawing permafrost weakens coastal lands. Risk of flooding in coastal wetlands. Pollution and toxins locked in the snow and ice will be released.