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Home Q & A Board Science-Related Homework Help Psychology Developmental Psychology
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ub|k ub|k
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6 years ago
According to the introductory video in section 1.1, which of the following is considered to be the lifeline of civilizations?
 
  A) roads
  B) rivers
  C) mountains
  D) glaciers
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Dr.VistaDr.Vista
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6 years ago
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ub|k Author
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6 years ago
this is exactly what I needed
jmelchor77
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Yesterday
This helped my grade so much Perfect
gage
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2 hours ago
Thanks for your help!!
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