sarahisalvador0 sarahisalvador0
  • 24-05-2017
  • Health
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Over the past 20 years , the efforts of the United States have decreased the amount of pollutions in the environment

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Аноним Аноним
  • 24-05-2017
The answer is true because the united states has decreased 
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priyd1014
priyd1014 priyd1014
  • 24-05-2017
True. It is definetly true
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