P-waves generally bend outward as they travel through the mantle due to the increased density of mantle rocks with depth. This indicates that P-waves slow down in the outer core, suggesting that this layer has a significantly different composition from the mantle and may actually be liquid.
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P-waves generally bend outward as they travel through the mantle due to the increased density of mantle rocks with depth. This indicates that P-waves slow down in the outer core, suggesting that this layer has a significantly different composition from the mantle and may actually be liquid.