Answers

2015-07-21T22:41:01+08:00
they used the body waves to experiment the inner part of the earth ,, the waves changes direction because of the density that the interior part of the earth have,, thats how they know,, they used the density,,, gets mo? magulo ata sagot ko
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2015-07-21T23:35:31+08:00
Because, S waves do not pass through it but P waves do? I'm not sure.
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