Which factor did not contribute to the increase of leisure travel in the early twentieth century in the United States?

The second factor as it did not make travel easy at all

Explanation:

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the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration

an interest group is an organization whose members share common concerns, and try to influence government policies that impact those concerns. elected officials frequently complain about the influence of "special interests" on american politics.