What are the environmental, social, and economic impacts of aviation?

More than 5% of our GDP is produced by aviation, which generates $1.6 trillion in overall economic activity and provides almost 11 million jobs. The nation's top net export remains to be aviation production.

Explanation:

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according to classical republican political theory, which democratic republics would function best?

a.   small republics, with people who had similar interests

b.   large republics, with people who had competing interests

c.   republics made up entirely of landowners

d.   republics made up entirely of servants

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