It could be considered as a key to the USA'S success. Back then we needed immigrants in order to build our nation. We were once immigrants to. So without the whole idea of immigration, the U.S might not have turned out as well as it did.
The right answer for the question that is being asked and shown above is that: "glass and marble." The ancient Chinese are known for their many works in <span>glass and marble. That is why, most of the ornaments of Chinese are made of marbles and glasses and even porcelains.</span>
