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• why do you think there are still smog events when there are pollution control devices on smokestacks and vehicles?
  
• what is space? a. the setting of a work of art b. the place where an artist lived c. the distance between objects
  
• which expressions are equivalent to 2 superscript 5 times 2 superscript 4? check all that apply.
  
• the disintegration of the abbasid caliphate most directly led to which of the following political developments in the islamic world in the thirteenth century?
  
• two boats are operating in the same general area. who is responsible for maintaining a sharp lookout?
  
• which excerpt from “man listening to disc” best supports the idea that when the speaker listens to music he is the center of his own world? my delight at being suffused with phrases from his saxophone— some like honey, some like vinegar— is surpassed only by my gratitude to the woman in the white sweater, the man in the tan raincoat and the heavy glasses, who mistake themselves for the center of the universe— all i can say is watch your step because the five of us, instruments and all, are about to angle over to the south side of the street and then, in our own tightly knit way, the only true point of view, is full of the hope that he, the hub of the cosmos with his hair blown sideways,
  
• what is the enthalpy of combustion when 1 mol c6h6(g) completely reacts with oxygen? 2c6h6(g) + 15o2(g) mc001-1.jpg 12co2(g) + 6h2o(g) –6339 kj/mol –3169 kj/mol 1268 kj/mol 6339 kj/mol
  
• what is the ratio of the total number of surveyed students who attended soccer games to the total number of students surveyed?
  
• a system that consists of tributaries, watersheds and divides is called a. lake system c. river system b. ocean system d. pond system
  
• which of these limiting factors could cause tree squirrels to lose their homes? a natural disaster an increase in predators an animal disease an increase in competition for food