how does the federal government pay for its operations? explair

Federal government gets money from various sources to pay for its operations and these sources are given as follows:

Money that comes from the interest on government securities that have been purchased by the U.S. government.Interest on foreign currency investments.Collecting income taxes from people.It also earns by getting money as interest on foreign currency investments.The largest sources of revenue are the income tax that the government receives from the corporates, excise taxes, and gift taxes.