What causes an volcano to erupt?

Answer 1

Volcanoes are formed when two tectonic plates in the earth come together. They push together and as they do, it pushes land upward, creating a mountain. It becomes a volano when magma form the earth's mantle rises up the centre of the vocano, and breaks through the top.

Answer 2

Volcanic eruptions occur when magma rises to the surface and is released as lava, ash, and gases. The build-up of pressure from the molten rock beneath the Earth's crust causes the volcano to erupt. Factors such as the composition of the magma, gas content, and the volcano's geological setting can influence the eruption style and intensity.

Answer 3

they erupt because of the hot magma in the earth want to get out

Answer 4

Magma that rises due to cracks in the crust of the Earth is what causes volcanoes to erupt. The eruption is to create a new crust.

Answer 5

The pressure of the magma (molten rock) building up under the earth's surface

Answer 6

tectonic plates that always move causing the ground to move which slowly rises it out of the mantle and because the manle is just hot lava lava comes out the opening

Answer 7

super heated gas builds up under the volcanic rock . when to much gas builds up the gas it breaks through the rock in a volcanic eruption.

Answer 8

there was to much pressure under the earth

Answer 9

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