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• in each example, the biosphere is interacting with another subsystem of earth. identify the other subsystem. marine life adds carbon dioxide to ocean water during respiration plants on land release oxygen during photosynthesis. bacteria living underground convert ammonia to nitrates. the waste from livestock adds nitrogen to the soil.
  
• an atomic scientist was studying an atom and through experimentation found that the total negative charge of the area surrounding the nucleus is -9. which statement correctly describes this atom?
  
• oliver completed his project in no more than twice the amount of time it took karissa to complete her project. oliver spent 4 and one-fourth hours on his project. if k represents the amount of time that it took karissa to complete her project, which inequality can be used to represent the situation? 4 and one-fourth less-than 2 k 4 and one-fourth less-than-or-equal-to 2 k 4 and one-fourth greater-than 2 k 4 and one-fourth greater-than-or-equal-to 2 k
  
• which of these events marked the beginning of the french revolution? napoleon’s victories in italy and egypt the overthrow of the french monarchy napoleon’s election as first consul the end of the reign of terror
  
• what is the maximum amount of time the chicken should cool from 135°f to 70°f
  
• what are some adaptations of the kangaroo rat that allow it to survive in the desert biome? how about the saguaro cactus? (site 1)
  
• lincoln's announcement of the emancipation proclamation had all of the following effects except : strengthened the union won support of nonslave countries ended slavery helped end the war
  
• which example best describes one way that humans contribute to the water cycle?
  
• which of the following values is equal to 1 micrometer? 0.000001 meter 0.001 meter 1,000 meter 1,000,000 meter
  
• which organs are part of the musculoskeletal system? select three choices.boneshairmusclesskintendonsnails