When does magma turn into a liquid and erupt? When it receives more pressure When the pressure on it decreases When it cools down

Magma is under immense pressure beneath the Earth's crust. When the pressure on it decreases, such as when tectonic plates shift or cracks develop in the rock above, it allows the magma to rise. This process is vital for volcanic eruptions, as the magma becomes less dense than the surrounding rock and seeks a passageway to the surface, resulting in an explosive release of lava, gas, and ash! Interestingly, not all magma eruptions are alike! Depending on the composition of the magma—whether it's viscous and sticky like a thick syrup or more fluid—eruptions can vary from gently flowing lava to explosive blasts. This difference influences the shape of the resulting volcanic landforms, like shield volcanoes or stratovolcanoes, making the study of eruptions both fascinating and vital for understanding our planet's geology!