3. leakage, because, are, taxes, from, the, system, power, purchasing, they, remove
(лучшее до чего смог додуматься - They remove power from the system because taxes are purchasing leakage)

6. transfer, payments, directly, do, not, output, generate, income, and
( моя самая смелая догадка - Income do not generate directly transfer output and payments)

Заранее благодарен

Taxes are leakage because they remove purchasing power from the system.

Income and transfer payments do not generate output directly.