What is an astronomer​

Iwould say d. eye contact and body language because you aren’t using any spoken communication. hope this : )

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.

Jupiter, saturn, uranus and neptune