The primary reason magma forms at subduction zones is that the subducting plate carries a cover of sediments, water, and hydrated minerals down with it, which lowers the temperature required for the adjacent overlying mantle lithospheric rock to melt. True / False.

True

Explanation:

The primary reason magma forms at subduction zones is that the subducting plate carries a cover of sediments, water, and hydrated minerals down with it, which lowers the temperature required for the adjacent overlying mantle lithospheric rock to melt.True

Subduction is a geological process that takes place at convergent boundaries of tectonic plates,this zones are the second most important environment on Earth for volcanic eruptions

Magma is produced in the subduction zone as a result of the  subducting plate carrying a cover of sediments, water, and hydrated minerals down with it, which lowers the temperature required for the adjacent overlying mantle lithospheric rock to melt. Due to the heat caused by it rubbing against the other plate as well as the natural heat of the mantle in the earth crust, the plate melts and turns into magma, also the melting of peridotite in the presence of water results in the generation of magma,this addition of fluids lowers the melting point of the mantle.

magmas in subduction zone volcanoes are often explosive, because they arrive at the surface as very sticky and gas rich