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Author Question: Nano materials have been thoroughly tested and shown to be safe, because they are too small to be ... (Read 19 times)

HCHenry

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on: Aug 27, 2018
Nano materials have been thoroughly tested and shown to be safe, because they are too small to be absorbed into cells
 
  Indicate whether the statement is true or false

Question 2

Vulcanization of rubber was discovered by
 
  A) Charles Goodrich.
  B) Charles Goodyear.
  C) Charles Firestone.
  D) Charles Vulcan.


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AngeliqueG

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Reply #1 on: Aug 27, 2018
Answer to Question 1

FALSE

Answer to Question 2

B


HCHenry

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Reply #2 on: Aug 27, 2018
Both answers were spot on, thank you once again


AngeliqueG

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Reply #3 on: Aug 27, 2018
Great! Please up vote :D


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