<span>In the Triassic period all of North America was similar to the Indonesian archipelago. After the heavy snow in the last mini-ice age the receding snows left huge craters resulting in the popular Great Lakes. Thus, altering the topography of the planet. </span>
It's mainly because of A and B, because after the war, the industrial resolution happened, and farmers are replaced by machines, farmers has no work to do, their speed is no compare to the machines, so they must move to another place. Also the population in Europe is growing in a extremely fast speed. Hope that helps :)
Answer:-
because They were on different sides of the war, one won, one lost, so they had different opinions.
I think its C because America enters the war when German started sinking there merchants ships.