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• president obama argued that there are science and technology jobs than there are people to fill them.
  
• in an experiment, researchers want to determine if the __________ variable causes changes in the __________ variable. a. dependent . . . independent b. confounding . . . independent c. independent . . . dependent d. dependent . . . extraneous
  
• which two numbers doesstartroot 61 endroot lie between on a number line? 7.7 and 7.8 7.8 and 7.9 7.9 and 8.0 8.0 and 8.1
  
• the enlightenment started around ad 1700. what were artists beginning to do at this time?
  
• what component of earth’s atmosphere exists entirely as a result of photosynthesis?
  
• when conducting a significance test in practice, how should you choose the alpha level?
  
• valentina’s mother an art history professor often gives lectures at the local museum.” the phrase “an art history professor” should be set off with commas. the phrase “valentina’s mother” should be set off with a comma. the phrase “at the local museum” should be set off with a comma. the sentence is correct as written.
  
• __________ is considered to be logical, rational, and realistic. a. the unconscious b. secondary-process thinking c. primary-process thinking d. the id
  
• what is the author’s primary purpose for including this detail? to inform readers about the differences between three military conflicts to persuade readers of the seriousness of the american civil war to entertain readers with tales from behind the lines of battle to encourage readers to visit battlegrounds in appomattox, virginia
  
• which of the following words best describes africa? country continent desert river