Answer:
D. His improvements allowed the steam engine to run more efficiently on oil instead of coal.
Answer:
One long term effect was the population decrease. Once populated villages and towns were left to rubble and ruins after the black death hit. Large, working expanses of land were left to deserted wilderness, crops were left to rot in the ground, and cattle were left to roam around until they perished.
Explanation:
C) They hated being occupied and controlled by the Northerners
they had just emancipated the slaves the main source of finance and a way of life for the white southerner