What causes a volcanoes to erupt?

Answer 1

What causes a volcano to erupt? Depending on the type and duration of the eruption lava and or tephra can pile up to make a volcano. What happens when volcanoes erupt? When it reaches the top, it explodes from the cone of the volcano. The pressure of the gases in the magma causes the volcano to erupt.
Science & Technology at Scientific American.com: Ask the Experts ... What causes a volcano to erupt and how do scientists predict eruptions? Bob Abram, MOLTEN ROCK, or magma, and gasses spew from the mouth of a volcano in more

Answer 2

Volcanic eruptions are caused by the release of pressure from molten rock (magma) beneath the Earth’s surface. This pressure builds up due to the accumulation of gases within the magma, forcing it to rise and eventually reach the surface, resulting in an eruption. The type and intensity of the eruption depend on various factors such as the composition of the magma and the presence of gas, water, and other materials.

Answer 3

Usually the magma clogs causing major pressure causing the volcano to explode violently or some times movement in the earths crust

Answer 4

Increasing lava content and pressure tectonic plates makes the volcano to erupt.

Answer 5

2 plates moving together pushing the opposite plate upwards and then magma comes up and eventually explodes