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. CO2 GHG forcing - H2O - dominant/major GHG






2. How much is the planet really warming?






3. 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






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






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






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






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






8. Positive Albedo Feedback - increase in temperature melts ice and snow reduces albedo increases temperature melts ice and snow reduces albedo... ETC






9. Over the Northern Hemisphere than the tropics.






10. 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






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






12. Average molecular life span is less than 10 years - Major sources: Wetlands and oceans - Raising cattle and landfills.






13. 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.






14. The Day After Tomorrow - Circulation will slow by 10% to 50% in the next century






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






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






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






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






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






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






21. 85%






22. 342 W/m squared - DWEC - These things reflect sunlight (30%): water vapor - clouds - dust particles - earth's surface






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






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






25. 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






26. Massive cooldown has allowed colder conditions to persist leading to cfcs stabilizing leading to ozone depletion. Later - more warming will lead to more moisture in the air which will lead to more snowfall!






27. 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.






28. Clouds 40~90% - Vegetation 10~15%






29. Industry 40% - Buildings 31% - Transportations 22% - Agriculture 4%






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






31. Ozone layer in high stratosphere (25-40 km altitude) absorbs about 95-99% of ultraviolet radiation.






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






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






35. Volcanic eruptions - Sunspots - Wobbly Earth






36. Cooler water and drought conditions.






37. 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






38. Warming- positive feedback - Cooling- negative feedback.






39. 20% human produced CO2 emissions. Tropical forests hold around 50% of the carbon present in vegetation on Earth.






40. Ocean retains ____ CO2






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






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






43. 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






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






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






46. 1. We live in troposphere. Greenhouse gases here warm up the Earth 2. Above stratosphere. The ozone in this layer protects us.






47. Land Based Ecosystems retain ____ CO2.






48. Greenhouse gases are a ___ portion of the atmosphere






49. Taliks are found under lakes because of the ability of water to store and vertically transfer heat energy - Vertical extent of the taliks found under lakes is related to the depth and volume of the overlying water body.






50. Where do greenhouse gases warm up the Earth?