¿A una persona que se dedica a ejercer la profesión de odontólogo en su consultorio particular, se le considera que es una empresa?

I don’t understand Spanish

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.