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  • 15-04-2017
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PLEASE HELP AS SOON AS POSSIBLE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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reyreyboi67
reyreyboi67 reyreyboi67
  • 15-04-2017
The second one and and the fourth one
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PrettyAwesomeSmart
PrettyAwesomeSmart PrettyAwesomeSmart
  • 15-04-2017


 B. When natural waterways are too difficult to navigate, people sometimes dig canals to provide a better means of transportation.

A.Since ancient times, people have used waterways for transportation.

D. Canals are man-made waterways that change the natural landscape to meet human needs.
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