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This statement is False. Extrusive, or volcanic, igneous rock is produced when magma exits and cools above (or very near) the Earth's surface.
What are Extrusive rocks?
There are many possible outcomes when a volcano erupts. Numerous compounds can erupt from the volcano's vent, and earthquakes are frequently measured. Typically, gaseous material, including ash and gaseous chemicals, billows from the top. The mountain's face is covered in lava, some of which can erupt out of the summit at high speeds and fall to the ground as chunks of swiftly cooling rock. Extrusive rock refers to the lava that cools on the volcano's surface and in the vicinity.
Extrusive rock is an igneous rock type that crystallises and cools on the earth's surface. A particular kind of rock called igneous rock is created when magma, which is another name for lava that is still present beneath the ground, cools and crystallizes. When the igneous rock breaks through the earth's surface, such as during a volcanic eruption, it can either cool slowly just below the surface of the planet or swiftly. When identifying rocks, this is crucial since igneous rock will always seem uniformly smooth or grainy.
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