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Author Question: Recent U.S. chemical accidents have been in the tens of thousands, some releasing great amounts of ... (Read 62 times)

asan beg

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on: Jul 2, 2018
Recent U.S. chemical accidents have been in the tens of thousands, some releasing
  great amounts of toxins.
 
  Indicate whether the statement is true or false

Question 2

We know the threshold levels for our natural system to prevent permanent damage to
  the ecosystem.
 
  Indicate whether the statement is true or false


braelync

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Reply #1 on: Jul 2, 2018
Answer to Question 1

F

Answer to Question 2

F


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