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Author Question: Gamma rays can be stopped by A) a sheet of paper. B) a thin aluminum sheet. C) a block of wood. ... (Read 38 times)

audragclark

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on: Aug 27, 2018
Gamma rays can be stopped by
 
  A) a sheet of paper.
  B) a thin aluminum sheet.
  C) a block of wood.
  D) several centimeters of lead.

Question 2

The protein that forms the strand of hair is
 
  A) cortex.
  B) cuticle.
  C) follicle.
  D) keratin.


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sabina576

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

D

Answer to Question 2

D


audragclark

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Reply 2 on: Aug 27, 2018
Wow, this really help

isabelt_18

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Reply 3 on: Yesterday
Gracias!

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