Answer:
Wages paid to workers in car factories
Explanation:
Internal cost are the cost included in the price of a product or good while external cost are third-party cost, they are cost incurred as a result of the use of a product.
Wages paid to workers in car factories are included in the price of the car and as such are considered as internal cost.
I guess the answer to the blank will be:
During the second Red Scare public and government suspicious of Communism led to the blacklisting of people in various industries.
A phalanx is a group of armed soldiers in ancient Greece arranged close together in rows.
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Physical factors that affect population density include water supply, climate, relief (shape of the land), vegetation, soils and availability of natural resources and energy. Human factors that affect population density include social, political and economic factors.