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






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






3. Number of days that exceed a given temperature






4. Industrial product - 300 ppb (parts per billion)






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






6. 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.






7. 23 -45 degrees. The Larger the tilt the larger the variability of the seasons.

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


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






9. The transition of a substance from the solid phase directly to the vapor phase - or vice versa - without passing through an intermediate liquid phase.






10. 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.






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






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






13. Total absorbed solar radiation






14. 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.






15. Cooler water and drought conditions.






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






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






18. 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






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






20. 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.






21. In troposphere = greenhouse warming gas - However - most of it is in the stratosphere.






22. CO2 - CH4 - O3 - H2O - N2O - CFCs






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






24. 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.






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






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






27. 10 : 1 - grounding ; surface






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






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






30. Melting Point decreases






31. How often does El Nio occur?






32. Descending Air dry - Convection cells are wet.






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






34. Is defined usually on the basis of the degree of dryness (in comparison to some 'normal' or average amount






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






36. Less frequent and weaker






37. 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






38. 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.






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






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






41. Greenhouse gases are a ___ portion of the atmosphere






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






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






44. 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:






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






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






47. The Earth emits this.






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






49. 85%






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