Answer:
The author uses as evidence the fact that many immigrants were fleeing poverty in their countries of origin, which presented few job opportunities, unlike the USA.
Explanation:
"Immigration and Ellis Island" shows how, despite the fact that many immigrants in the USA were looking for a way to exercise their religions without suffering persecution, most of them were fleeing poverty and saw in the USA a way to improve their economic conditions. This is because their countries of origin, most of them located in eastern and southern Europe, presented few job opportunities, leaving many of them in a situation of misery. However, the USA had high industrialization and employment opportunities.
A participle has the following form: verb + -ing, and the only word in this sentence that takes that form is A, 'flying', which is the correct answer.
If I'm correct in thinking the play is "Romeo and Juliet", then Mercutio is related by being a character in said play. Hope this helps.
There were no roads or automobiles in the area.
It's clear through the passage that there are no paved roads or cars to get the miners from place to place. They had to carry all of their gear and supplies through dangerous trails by foot, only being able to travel a certain amount each day.