Why is brazil developing the fuel ethanol into a major industry?

Ethanol comes from corn. It is being used to make gasoline more fuel efficient and productive. There is a large market for it and a lot of revenue to be made.

Answer (datum point);

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.