pleasehelp42141 pleasehelp42141
  • 16-10-2017
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PLEASE HELP BEFORE IM LATE....
how have scientist been able to determine the composition of earths layer?


earth science

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Аноним Аноним
  • 16-10-2017
Hi. Scienctists have been able to determine the composition of earth's layer because of how the seismic waves change speeds as they travel through Earth. 
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andypandy132215 andypandy132215
  • 07-05-2022

Answer:

By looking at how seismic waves change speeds as they travel through Earth.

Explanation:

By looking at how seismic waves change speeds as they travel through Earth.

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