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. Set up in 1988 by WMO and UNEP.






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






3. 2ppm of the atmosphere - less than 20% of greenhouse gases - 1/3 greenhouse gases effect of CO2






4. Volcanic eruptions - Sunspots - Wobbly Earth






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






6. Total absorbed solar radiation






7. 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.






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






9. Greenhouse gases are a ___ portion of the atmosphere






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






11. Amount of light absorbed by atmosphere






12. Help darkens the snow and ice surface - increasing the amount of energy that is absorbed.






13. CO2 GHG forcing - H2O - dominant/major GHG






14. Precipitation extremes appear to generally increase across the planet at especially high latitudes.






15. How much is the planet really warming?






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






17. This is the total mass change - difference between input and outputs—snow accumulation-ablation.






18. The high pressure decreases the melting point and favors melting - Melt water being less dense rises along the water column along the ice shelf bottom and may either escape the cavity or refreeze at some intermediate depth. Melting point decreases:






19. 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.






20. Number of days that exceed a given temperature






21. LW - SW - 55% absorbed by surface






22. Ocean retains ____ CO2






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






24. 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.






25. 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.






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






27. 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.






28. Greenhouse gases are mixed in the ____






29. Amount of light absorbed by surface






30. Like weighing oneself on the scale.






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






32. 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






33. Fresh snow and snow-covered sea ice may have an albedo higher than 80% - even when melting in the summer. Sea ice has a higher albedo and can absorb as little as 10% of the solar energy. On average - sea ice albedo is around 85%






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






35. Warming- positive feedback - Cooling- negative feedback.






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






37. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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






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






40. 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






41. 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.






42. More common






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






44. ~10% of incident solar energy (albedo 90)






45. A dome shaped cover of perennial ice and snow.






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






47. The Earth emits this.






48. O Climate change in the Arctic is occurring now - Changes have been huge already






49. 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






50. 85%