A bar chart titled Federal Tax Revenue is shown. Individual income tax is 42 percent, Payroll taxes is 40 percent, corporate income tax is 9 percent, and other is 9 percent. Forty-two percent of federal revenue comes from
.

Income taxes paid by businesses and corporations make up about
of federal revenue.

Taxes collected for Social Security and Medicare make up
of federal revenue.

The smokey mountains have over 2,100 miles of rushing mountain streams and rivers that flow through the park. in each mile lives a diverse community of native fish, amphibians, insects, and larvae, some of which are found only in the southern appalachians. park managers and scientific researchers test many factors such as fish populations, the watersheds and water tests to determine a) too many lizards are present b) the water quality of the stream c) rainwater is running into local streams d) if visitors to the park are overstaying their welcome