The 1920 census revealed that most Americans chose to live in<span>(A) urban areas.</span>
the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
The Magna Carta was a Latin Document that was for freedom. The Mayflower Compact was a set of rules self-governance established by the English settlers who traveled to the New World on the Mayflower.
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Better jobs & opportunities.
A push factor would be like famine or disease in the country, etc.