-<span>world's longest human made structure at more than four thousand miles actually
</span>-co<span>nstructed from a series of smaller walls that were connected together built
</span><span><span>
-to guard against Mongol invaders</span></span>
jew christians such as abraham moses and jesus Explanation:
"<span>There are still political colonies that encourage ethnic conflict" is the best option for the most likely reason </span>there are still acts of genocide in the world today, since this has been true throughout history.
Answer: there was a new trend of immigrants coming from Eastern and Southern parts of Europe
Explanation: In the late 1800s and early 1900s, majority of immigrants were from Ireland, Scandinavia and Great Britain, the Northern and Western parts of Europe. But increasingly, there was a new trend of immigrants who also arrived from the Eastern and Southern parts of Europe along with some immigrants from Asia and South America. In the first 2 decades of the 20th Century, immigrants numbered more than 15 million.
