SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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all layers
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crust, mantle, and inner core
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outer core only
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inner core and outer core
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Detailed explanation-1: -Table 1 Properties of P-waves and S-waves P-waves pass through both mantle and core, but are slowed and refracted at the mantle / core boundary at a depth of 2900 km.
Detailed explanation-2: -Note that P waves pass through all layers of the earth, while S waves cannot pass through the solid core of the earth, resulting in an S wave shadow on the opposite side of the earthquake.
Detailed explanation-3: -P waves travel through the fluid layers of the Earth’s interior, and yet they are refracted slightly when they pass through the transition between the semisolid mantle and the liquid outer core.
Detailed explanation-4: -Two kinds of waves are generated by earthquakes and travel through solid rock: In P or compressional waves, the vibration of the rock is in the direction of propagation. P waves travel fastest and are the first to arrive from the earthquake.
Detailed explanation-5: -P waves travel through solid and liquid, but S waves do not travel through liquid.