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. On a clear cold day - the thin layer of air hugging the ground is called inversion. This layer is much cooler than the air a few hundred meters above it.






2. Ice sheets have a very ____ Albedo






3. High vs low






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






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






6. The amount of light reflected by an object.






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






8. Where do greenhouse gases warm up the Earth?






9. Much of the Arctic is overlain by snow and sea ice (land ice and sea ice) - It makes warming a much bigger deal in the Arctic






10. South polar vortex - Temperatures drop below 80O Celsius in the lower stratosphere - At these temperatures the chemicals in the stratosphere freeze and form Polar Stratospheric Clouds (PSCS) - These increase the concentration of CFCs in turn destroyi






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






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






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






14. Amount of light absorbed by atmosphere






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






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






17. 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






18. 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






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






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






21. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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






23. US is responsible for ___ of the total CO2






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






25. 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






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






27. Low clouds are a ____ feedback; they will reflect more sunlight. Clouds reflect shortwave radiation but also absorb longwave radiation






28. Laser radar - H V - Long time series - high accuracy - Density






29. Descending Air dry - Convection cells are wet.






30. Rain is getting harder and the rain is lasting longer since the past couple of decades and will continue for that amount.






31. Cooler water and drought conditions.






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






33. Really measures volume.






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






35. The major distinction between the Protocol and the Convention is that while the Convention encouraged industrialized countries to stabilize GHG emissions - the Protocol commits them to do so.






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






37. Absolute thresholds - Monthly maximums and minimums - Threshold departures - Percentile departure - Atmospheric Water Vapor: More water vapor in the air - warmer nights!






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






39. Number of days that exceed a given temperature






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






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






42. 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.






43. Land Based Ecosystems retain ____ CO2.






44. 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






45. Grounding line is the last portion of a glacier grounded to bedrock - after this line there are ice shelves - Glaciers contribute to sea level rise after passing the grounding line - Maximum thinning at grounding line.






46. O Unfrozen soil that stays within the permafrost.






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






48. 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.






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






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