yoneedhelphere
yoneedhelphere yoneedhelphere
  • 14-02-2018
  • Chemistry
contestada

Help .......help pls and thanks

Help help pls and thanks class=

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xanmc11
xanmc11 xanmc11
  • 14-02-2018
 4 and 6 because the lower the layer the older it is. I hope this helps.
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