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Question 8
The diagram shows a cross-section of the Earth. An earthquake takes place at point X. Which type(s) of seismic waves would be detected at point Y? A P-Waves no ... show full transcript
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Answer
To determine the types of seismic waves that would be detected at point Y, it is essential to understand the properties of P-waves and S-waves:
P-Waves (Primary Waves): These are compressional waves that can travel through both solids and liquids. Since point Y is located below the crust but still in the mantle, it can detect P-waves emitted from an earthquake occurring at point X, as they have the ability to pass through all layers of the Earth.
S-Waves (Secondary Waves): These waves are shear waves that can only travel through solids. Given that point Y is also within a solid layer, it can only detect S-waves if it is within a solid medium. However, S-waves cannot travel through the Outer Core, leading to the conclusion that S-waves would not reach point Y if the earthquake originated at point X.
Based on this analysis, the correct response is:
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