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5. Why do the paths of P and S-waves curve as they travel through the
Earth?
6. Fill in the gaps in the following sentences:
a) P and S-waves travel
in more dense material.
b) P-waves travel through
and
.
c) S-waves travel through
only.
d) P-waves are
than S-waves.
e) P and S-waves reveal the
of the Earth as they travel through it.
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