What does the map show about the spread of Islam in 750 A. D.? A.
Islamic settlements were limited to lands in the northern regions.
B.
Islamic settlements had spread to include parts of three continents.
C.
Islamic settlements were limited to parts of Europe and Africa.

plz 28 points

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.