The correct answer is - D) Jewish immigrants in Poland who fled to the United States to escape religious persecution and seek safety and new opportunities.
The push factors are the factors that make the people move away from one place to another. They are negative factors, and can be economical, political, because of safety reasons etc.
The Jews that fled Poland in order to feel safe and get new opportunities in life in the United States, based on the religious and ethnic persecution, is a nice example of a push factor. In this case we have a push factor motivated on religious and ethnic hatred, which of course will make the people of the persecuted group feel unsafe, threatened, so they will try to move away if possible because their lives are in danger.
The Middle East has 4 different climatic regions. East coast, mountainous region, gravel planes, and the desert region.
I would say : landslides, tsunamis, and liquefaction.
I assume that the question refers to the political affiliation of the Islands (They are Islands in the Mariana Trench, in the Pacific Ocean, south of Japan) - they are politically linked to the US - the correct answer is a). For example the Mariana islands have a commonwealth status within the US.
Darwin is a great example. He created the theory of evolution, but because of the church ridiculing him, he couldn't come forth with his findings. Some parts of science may seem outlandish to society, and that can be very difficult to deal with.
