define lava?short answer
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Explanation:
Lava is molten rock that has been expelled from the interior of a terrestrial planet or a moon. Magma is generated by the internal heat of the planet or moon and it is erupted as lava at volcanoes.
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Answer:
Lava is the silicate rock that is hot enough to be in liquid form. It is expelled from a volcano during an volcano eruption.
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