why do earthquake wave develop shadow zone
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The shadow zone is the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves. The shadow zone results from S waves being stopped entirely by the liquid core and P waves being bent (refracted) by the liquid core.
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the shadow zone results from Sbwaves being stopped entirely by the liquid and P waves being bent refracted by the liquid core....through measuring how P and S travel through the earth and out the other side seismic wave shadow zone was discovered in 1910
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