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| Looks like Magma! | Add a little (internal) heat... | ... and watch the convection! | |
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| Hot magma Rises... | ...plates move apart... | ...a diverging boundary ! | |
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| Cool magma sinks... | ...plates come together... | ...a converging boundary ! | |
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| The asthenosphere is liquid, the lithoshpere is solid plates and internal heat causes convection! | |||
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| Magma rises between | South American & African | ||
| South America & Africa | plates drift apart! (diverge) | ||