PART A: Which statement best identifies the central idea of the text? A While a majority of Americans live in the suburbs currently, future generations will likely have to occupy cities and rural areas. B Future generations will be forced to move into cities, as the commute between suburbs and cities will harm the environment. C Many Americans live in the suburbs, but work in cities, presenting environmental concerns for the future. D Pollution in the cities will continue to build until people who dwell there are forced to move to rural and suburban areas.

C Many Americans live in the suburbs, but work in cities, presenting environmental concerns for the future.

Explanation: American population demographic already shows that many people live in the suburbs and work in the cities, a 2016 study showed that companies in cities contributed about 90% to the Gross Domestic Product of America. With a growing concern about the level environmental population generated by companies in the cities, and with baby boomers generation set to overtake the millennials there is a growing concern on the negative environmental impact and how this challenge would affect their future.

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the treaty of brest-litovsk was a peace treaty signed on 3 march 1918 between the new bolshevik government of russia and the central powers (german empire, austria-hungary, bulgaria, and the ottoman empire), that ended russia's participation in world war i.