Both do! Depends on which suits you better personally. I like chemistry, but truly love physics
Physics or bio-chemistry have a good future. You can combine both into something like process technology or reaction kinetics.
Both of them has got equal good opportunity. For you the best is the one you enjoy .
depends; physics lets you be the inventor of the new planet killing "a bomb" generation.... chemistry will make you the father of terrible chem weapons that can depopulize entire cities with a spoonful of greenish glibber... for in the end, all technological advancement ends in new ways to kill and in the hands of some lords of war, doesnt it?
engineering ! ! there is a shortage of them and will be for a while, especially ones who speak read and write English fluently.