define lava ? what is the answer
Answers
Answer:
Lava is molten rock (magma) that has been expelled from the interior of some planets (including Earth) and some of their moons
Explanation:
Explanation:
Lava is molten rock (magma) that has been expelled from the interior of some planets (including Earth) and some of their moons. Magma is generated by the internal heat of the planet or moon and it is erupted as lava at volcanoes or through fractures in the crust, usually at temperatures from 700 to 1,200 °C (1,292 to 2,192 °F). The solid rock resulting from subsequent cooling is also often described as lava.
A lava flow is a moving outpouring of lava created during a non-explosive effusive eruption. When it has stopped moving, lava solidifies to form igneous rock. The term lava flow is commonly shortened to lava. Although lava can be up to 100,000 times more viscous than water, lava can flow great distances before cooling and solidifying because of its thixotropic and shear thinning properties.
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