What is the name for the areas of calm winds near the equator? A.
the tropics
B.
the doldrums
C.
the Arctic Circle
D.
the Bermuda Triangle

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.