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. 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.






2. 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






3. Is not an externally imposed perturbation to the climate system.






4. Concentration of 380 ppmv - Have risen about 40% - Preindustrial~ 270~280 ppmv






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






6. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






7. 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:






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






9. Like weighing oneself on the scale.






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






11. Occurs when there is not enough water available for a particular crop to grow at a particular time.Typically seen after!meteorological drought (when rainfall decreases) but before a hydrological drought






12. 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


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






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






15. Number of days that exceed a given temperature






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






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






19. Long time series started in the '70s and yielding good data in the '90s - Detects elevation with high accuracy: 10 cm precision (laser) to 1 m (radar) - 2/3 Gravity Surveys (GRACE) - Weighing the total mass every 30 days - Direct monthly estimate






20. Permafrost- A frozen soil






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






22. Cooler water and drought conditions.






23. 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






24. Ice sheets have a very ____ Albedo






25. 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






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






27. The heat input is either driven by the 1- thermohaline circulation associated with sea ice formation. The direct influx of intermediate warmth water.






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






29. 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






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






31. Just remember the general direction of the circulation - Rising northern pacific. You start in between Greenland and Europe (youngest water) - Oldest water is in the Pacific Ocean - Salty water> fresh water - Cold Water > Warm Water






32. Carbon dioxide - Methane - Ozone - Water Vapor - Few others - Most ___________________ are mixed in the troposphere (Except water vapor) - Water vapor is concentrated closer to the ground.






33. 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.






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






35. When meltwater seeps through a flowing glacier - it can lubricate the base and hasten the glacier's seaward flow.






36. Extent will increase the warming because less energy will be reflected back to the atmosphere by the ice and more will be absorbed by the ocean.






37. How often does El Nio occur?






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






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






40. Reduction of Summer Sea- will increase the warming because less energy will be reflected back to the atmosphere by the ice and more will be absorbed by the ocean - Snow and snow covered ice absorb 15% of incident solar energy - Ice absorbs 10% of inc






41. 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






42. Land Based Ecosystems retain ____ CO2.






43. More common






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






45. 1.4 USA - 57 m total sea level equivalent






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






47. 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






48. Over the Northern Hemisphere than the tropics.






49. Descending Air dry - Convection cells are wet.






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