GEOLOGY

Detailed explanation-1: -The liquid rock is collected in chambers called magma chambers. The pressure builds up due to the expanding steam and gases associated with magma. As the pressure reaches a peak within these chambers, magma finds its way through a vent. This results in volcanic eruption and the expulsion of the hot molten rock.

Detailed explanation-2: -Vent-The opening or place at Earth’s surface through which magma, rock fragments, and/or volcanic gases are emitted. Volcanic edifice-A mountain or cone that is the main portion of a volcano.

Detailed explanation-3: -rocks form when magma rises from the mantle but cools down and solidifies in the crust. Q. Magma that reaches the Earth’s crust and is thrown out from a volcano is called lava.

Detailed explanation-4: -Conduit-An underground passage which magma travels through: One of the most important volcano parts is the conduit, which is an underground passage through which magma travels to the surface of a volcano. The molten rock rises in the conduit, because it is less dense than surrounding solid rock.