Which of the following would be the least likely cause of a volcanic eruption? tectonic plates colliding

gas pressure within Earth’s crust

tectonic plates sliding past each other

new magma flowing into an already full magma chamber

Tectonic plates sliding past each other :)

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.

Icant awnser the qustion bc u have the planets not listed