Question

What happens to lava when it cools on Earth’s surface?

Answer 1

Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust. ... When lava comes out of a volcano and solidifies into extrusive igneous rock, also called volcanic, the rock cools very quickly.

Answer 2

Answer:

Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust. ... When lava comes out of a volcano and solidifies into extrusive igneous rock, also called volcanic, the rock cools very quickly.

Explanation:

Lava is molten rock that comes out of volcanoes. When the lava cools down, it forms solid rock. ... Sometimes, the volcano erupts by shooting bits of rock and ash into the air. The cooled lava and the ash build up steeper volcanoes.

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