The assembly line and the use of machines due to Henry Ford making the model T
Answer: My guesses are...
B. Ghana lacked nearby water resources (because of the drought that was put upon them.) and E. Ghana did not have iron weapons and rival nations did.
I hope these are it and I hope that this helps you a little. Sorry if they aren't correct. I truly am sorry if they aren't. Good luck.
Answer: The government was ruled by one leader.
Most immigrants came from Ireland due to the potato famine.
Explanation:
One of the most devastating things to happen to Ireland was the potato famine where millions of people died of starvation in a famine tat was largely avoidable but the British did not do anything about it.
A huge stretch of the population thus decided to move away from the nation to settle for better prospects and the majority chose US.
The US thus became swarmed with migrants from Ireland on its shore that wanted sanctuary.