Question

What is volcano how does volcano blast

Answer 1

Answer:LOOK BELOW

Explanation:VOLCANO

WHTA IS VOLCANO

A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.

On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater

WHY IT ERUPTS

Volcanoes erupt when molten rock called magma rises to the surface. Magma is formed when the earth's mantle melts.

Melting may happen where tectonic plates are pulling apart or where one plate is pushed down under another.

Magma is lighter than rock so rises towards the Earth's surface. As the magma rises, bubbles of gas form inside it.

Runny magma erupts through openings or vents in the earth's crust before flowing onto its surface as lava.

If magma is thick, gas bubbles cannot easily escape and pressure builds up as the magma rises.

When the pressure is too much an explosive eruption can happen, which can be dangerous and destructive.

Another way an eruption happens is when water underneath the surface interacts with hot magma and creates steam,

this can build up enough pressure to cause an explosion.

Answer 2

Since it is lighter than the solid rock around it, magma rises and collects in magma chambers. Eventually, some of the magma pushes through vents and fissures to the Earth's surface. ... If magma is thin and runny, gases can escape easily from it. When this type of magma erupts, it flows out of the volcano.