Answer:
The abundance of volcanoes and earthquakes along the Ring of Fire is caused by the amount of movement of tectonic plates in the area. Along much of the Ring of Fire, plates overlap at convergent boundaries called subduction zones. ... A significant exception is the border between the Pacific and North American Plates.
It was "New Amsterdam" that was founded by the Dutch in the early-1600s and is now known as New York City, since they wanted to name this colony after the capital of their homeland.
The answer is the Gulf of Tonkin Resolution. i hope this helped <3
According some authors which discuss this theme there were some factors as:
1) At the middle of 1850 the Chinese were still under British rule and the conditions were very difficult.
2) The devastation of southern Chinese by the taiping rebellion. This destroyed the rural economy and killed more than twenty millions people.
3) The gold was discovered in California in 1848. It produced a big immigrations at the final of century 17th.
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