GEOLOGY

Detailed explanation-1: -A volcano is a weak spot in the crust where molten material, or magma, comes to the surface. Magma is a molten mixture of rock-forming substances, gases, and water from the mantle. When magma reaches the surface, it is called lava.

Detailed explanation-2: -When magma reaches Earth’s surface and erupts from a volcano, it becomes lava.

Detailed explanation-3: -11) volcanic mountain This is formed when molten material and ash reaches Earth’s surface through a weak crustal area and piles up into a cone-shaped structure.

Detailed explanation-4: -Eventually, some of the magma pushes through vents and fissures to the Earth’s surface. Magma that has erupted is called lava. Some volcanic eruptions are explosive and others are not.

Detailed explanation-5: -The location beneath the vent of a volcano where molten rock (magma) is stored prior to eruption. Also known as a magma storage zone or magma reservoir.