Which Tax Is Currently the Single Greatest Source of Federal

question 45

Multiple Choice

Which tax is currently the single greatest source of federal revenues, comprising almost half of total federal tax revenue?

• A) Tariff
• B) Income tax
• C) Social Security tax
• D) Corporate income tax
• E) Excise tax

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Definitions:

Neuron

A specialized cell transmitting nerve impulses; a nerve cell, which is the fundamental unit of the nervous system enabling communication throughout the body.

Nervous System

A complex network of nerves and cells that transmit signals between different parts of the body.

Carcinoma

Carcinoma is a type of cancer that begins in the skin or in tissues that line or cover internal organs.

Myelin Sheath

A fatty layer that surrounds the axon of some neurons, increasing the speed at which electrical impulses propagate along the nerve cell.