UNIVERSE
PLANETARY INTERIORS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Scientists have theorized that Earth’s outer core is a molten liquid because
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all seismic waves are refracted at the depth of the outer core.
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P or primary waves disappear into the Earth’s interior and do not resurface.
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S or Secondary waves pass through the center of Earth while primary waves do not.
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of the lack of S or secondary waves in the shadow zone.
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Explanation:
Detailed explanation-1: -The shadow zone is the area of the earth from angular distances of 104 to 140 degrees that, for a given earthquake, that does not receive any direct P waves. The shadow zone results from S waves (not shown in animation) being stopped entirely by the liquid core and P waves being bent (refracted) by the liquid core.
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