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Science How do we know that some layers of the Earth are solid and some liquid? Pls write at least 5 sentences
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Science How do we know that some layers of the Earth are solid and some liquid?

Pls write at least 5 sentences

User Dkarchmer
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Normally we use seismic waves caused by earthquakes or explosions. The wave travels through the layers of the earth and by the way that the layers react we can tell if they are liquid or solid. Sorry i couldn't stretch it to make it five sentences.
User Gisella
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