which event causes a volcanic eruption? magma turning into lava water being heated by magma explosions…

Answer:

C. explosions occurring in magma chambers

Brief Explanation:

Volcanic eruptions are often triggered by pressure - related events in magma chambers. When gas bubbles in the magma expand and cause explosions in the magma chamber, it can force magma to the surface, leading to an eruption. Magma turning into lava is a result of an eruption, water being heated by magma is not the main cause of eruption, and magma cutting through older rocks is a part of the process but not the triggering event.