GEOLOGY

Detailed explanation-1: -There is no formation of volcanoes in the convergence between two oceanic plates. 2. When a plate is denser, it subducts toward the mantle and forms magma. This process ends up in the formation of volcanoes.

Detailed explanation-2: -Volcanoes do not typically occur at transform boundaries. One of the reasons for this is that there is little or no magma available at the plate boundary. The most common magmas at constructive plate margins are the iron/magnesium-rich magmas that produce basalts.

Detailed explanation-3: -In order for a volcano to form, the crust of the Earth must be forced deep down into the mantle so that parts of it can liquify to form the magma that fuels volcanic eruptions. When two continental plates collide, neither plate is forced deep enough for the heat and pressure to cause magma to form.

Detailed explanation-4: -Convergent Plate BoundariesAt a convergent plate boundary, tectonic plates move toward one another and collide. Oftentimes, this collision forces the denser plate edge to subduct, or sink beneath the plate edge that is less dense. These subduction zones can create deep trenches.