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14-02-2017
Chemistry

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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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chancedale chancedale

14-02-2017

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.

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