The answer is B solar power in Ireland
Some of the peoples it conquered didn't want to be ruled by the Incas and were rebellious, mainly, and it was so big that it couldn't keep the conquered in line very well.
I believe it was the use of poisonous gasses, which they not only used on the Jews but in war too......., or The newly created Machine gun<span />
Andrew Jackson was elected to the U-S Presidency in December 2,1828. He was elected over fellow candidate John Quincy Adams.
The primary way in which the passage of the Factory Acts (1844–1847) affected labor was that it restricted the working hours in factories to 10 hours a day, which cut back on worker injury and fatigue.