Waterfall. <span>As the river or stream wears away the weak rocks, they travel across the surface of stronger rocks. These more resistant rocks become the capstones to waterfalls. The number and thickness of these stronger rock units in a vertical sequence of rocks controls how many water falls there are and how much vertical drop there is on each waterfall.</span>
This quote illustrates the role of a Commander-in-chief. When the country is invaded or attacked, the president has powers to take <em>critical decisions</em> to deal with the imminent conflict. In the case of any crisis, the president is requesting the congress for <em>similar executive powers</em> in order to wage a war agaisnt the emergency, as if it were a real war.
the U.S. should not have helped Germany recover from war.
Answer: Well, according the the all-knowing Googs:
"Immigration to the U.S. in the Late 1800s. Between 1870 and 1900, the largest number of immigrants continued to come from northern and western Europe including Great Britain, Ireland, and Scandinavia. But "new" immigrants from southern and eastern Europe were becoming one of the most important forces in American life."
However!! Uh, There is no 'however', but I hope this lazily-obtained answer helps you, and if it does not, then comment and I will scour the internet for the answer in which. you. seek.