Question

explain extrusive igneous rock​

Answer 1

$\huge\mathrm\pink{Answer:}$

Extrusive rocks are formed on the surface of the Earth from lava, which is magma that has emerged from underground. Intrusive rocks are formed from magma that cools and solidifies within the crust of the planet.

_________________________

Answer 2

$\huge{\underline{\mathcal{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$.

Extrusive rock refers to the mode of igneous volcanic rock formation in which hot magma from inside the Earth flows out (extrudes) onto the surface as lava or explodes violently into the atmosphere to fall back as pyroclastics or tuff. In contrast, intrusive rock refers to rocks formed by magma which cools below the surface.

The main effect of extrusion is that the magma can cool much more quickly in the open air or under seawater, and there is little time for the growth of crystals. Sometimes, a residual portion of the matrix fails to crystallize at all, instead becoming a natural glass or obsidian.

Hope it helps you✨...

Thanks☸..