For the first question i think you meant United Nation, If so it is true and the second one is also True. Where there there will always be refugees.
The correct answer here is the third option.
After the Supreme Court ruling of 1886, in 1887 the Interstate Commerce Act of 1887 was enacted and it reduced the powers of individual state governments to regulate railroads as it introduced federal guidelines and rules that were there to regulate the railroads on a federal scale.
To find gold and silver for England. American colonies would be a great source of raw materials for England to open a new market of trade
Total war is when weapons are used and the laws of war are disregarded. So i would say the answer is C.
they would be able to cultivate land and therefore have a surplus of crops to sell as exports.