The steam engine, which drove the industrial revolution, was powered by? A). Steam
B). Oil
C). Wood
D). Coal

Steam

Explanation:

They were powered by air pressure pushing a piston into the partial vacuum generated by condensing steam, instead of the pressure of expanding steam. The engine cylinders had to be large because the only usable force acting on them was atmospheric pressure.

it was the "4. potsdam" conference that demanded the unconditional surrender of japan, since it was clear that the japanese would continue to find until the very last man otherwise.