The development of rail and automobile transportation has shaped the growth of us cities, while the development of flight has led to their decline.

I think you wanted to know whether the statement in question is true or false. Based on this assumption, i am answering the question and hope that it helps you. It would be false to state that the development of rail and automobile transportation has shaped the growth of US cities, while the development of flight has led to their decline.

It is c. naturally in the environment

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