HELP what can scientists infer from examining these direct paths of S waves and the S-waves shadow zone?
A. Earth has a fractured crust.
B. Earth has a liquid layer.
C. Earth has a solid core.
D. Earth has a thin crust.

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the

The higher you go up the less oxygen there is