castrofilibert1 castrofilibert1

13-12-2018
Geography

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Pumice is a type of rock formed when gas bubbles are trapped inside of cooling lava. Pumice is most often formed when volcanoes erupt violently. What type of rock is pumice? A) extrusive igneous B) intrusive igneous C) contact metamorphic D) foliated metamorphic

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clp31204 clp31204

13-12-2018

its A)extrusive igneous

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steffimarish steffimarish

10-10-2019

Pumice is a type of extrusive igneous rock.

Answer: Option A

Explanation:

Pumice is an extrusive igneous rock that is formed when volcanoes explode and release magma. Most pumice stones are porous and can float on water.These rocks can also become waterlogged because of their porous nature.

It is an amorphous rock. It is formed when magma cools so quickly the rocks are not able to form a crystalline structure. Pumice is used in landscaping and also concrete.

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