Most of asia lies in which hemisphere?

North Hemisphere, because most of Asia lies above the Equator        

Asia mostly lies in the Northern Hemisphere, but the parts on the southeast are in the Southern Hemisphere.

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.