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Light porous volcano rock, often referred to as pumice, is formed when volcanic lava cools rapidly and depressurizes, trapping gas bubbles within. This unique structure gives pumice its lightweight and porous characteristics, making it useful in various applications such as landscaping, construction, and even cosmetics. Its ability to retain moisture and improve soil aeration also makes it popular in gardening. Additionally, pumice is often used as an abrasive material in personal care products.

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1w ago

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What is molten liquefied rock called when it irrupts from the earth's interior from a volcano or fissure and cools into a porous black and hard material?

The molten liquefied rock is called lava when it erupts from a volcano or fissure and cools into a porous black and hard material known as basalt or igneous rock.


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Pumice is an example of this


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Frothy volcanic rocks are called pumice. Pumice forms when lava with high gas content erupts from a volcano and cools rapidly, trapping gas bubbles within the rock, giving it a lightweight and porous appearance.


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Pumice is an example of this


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