Test your basic knowledge |

Global Warming

Subjects : literacy, science
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. Troposphere - Stratosphere (Ozone Layer) - Mesosphere - Ionosphere

2. The warmer the temperature - the deeper the active layer - thaws and refreezes every year - Permafrost below freezing for two or more years.

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

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

5. 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.

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

7. The land-surface configuration that results from the melting of ground ice in a region where permafrost degrades is called Thermokarst.

8. 85%

9. 10 : 1 - grounding ; surface

10. How much is the planet really warming?

11. Ice flowing from the middle of Greenland to the edges and melting. 90 feet a day- speed that ice is moving.

12. Betts et al found that: if CO-2 __________ this has a physiological effect on plant transpiration increased simulated runoff by 6% b. How? i. More CO2 1. Plants pores open less 2. This reduces transpiration 3. More water in the land surface

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

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

15. Warming- positive feedback - Cooling- negative feedback.

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

17. 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.

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

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

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

21. Descending Air dry - Convection cells are wet.

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

23. Where do greenhouse gases warm up the Earth?

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

25. Greenhouse gases are a ___ portion of the atmosphere

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

27. High cloud has a _____ effect and cool cloud has a ____ effect

28. Measures input and output.

29. An area of unfrozen ground that is open to the ground surface but otherwise enclosed in permafrost.

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

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

32. 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

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

34. Volcanic eruptions - Sunspots - Wobbly Earth

35. Number of days that exceed a given temperature

36. The amount of light reflected by an object.

37. Ice melting rapidly? What type causes sea level to rise? What have been the main contributors to sea level rise so far? What are the impacts of melting ice? - On nature - On humans

38. Radiation that comes from the Sun - Visible light - 'near infrared' - ultraviolet radiation.

39. Trade winds blow from East to West - Pool of warm water in the west - Meanwhile deep colder water rises up in the Eastern Pacific - The sea level is ~ 50-60 cm higher in Western Pacific (Indonesia) than in the Eastern Pacific (South America/Peru) -

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

41. 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

42. 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

43. Changes over time in the highest and lowest single temperature observed during a given month of the year.

44. Forms in a mosaic of favoured locations.

45. US is responsible for ___ of the total CO2

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

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

48. Atmosphere retains ____ CO2

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

50. 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.