GEOLOGY

Detailed explanation-1: -A volcano is an opening in the Earth’s crust that allows molten rock, gases, and debris to escape to the surface. A volcanic eruption may release acid, gases, rocks, and ash into the air.

Detailed explanation-2: -A volcano is an opening in the earth’s crust through which molten material from the mantle escapes to the Earth’s surface. The molten material is called magma when it is inside the volcano, and lava when it shoots out of the volcano and spreads onto the Earth’s surface.

Detailed explanation-3: -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-4: -Scientists use the term magma for molten rock that is underground and lava for molten rock that breaks through the Earth’s surface.