What is physical capital and what are its different types. in points
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Physical capital is the input that is used at various stages of the production of goods and services. There are two types of physical capital: fixed capital and working capital. Fixed capital includes assets that can be used over many years in the process of production like machines in a factory, building, etc.

the answer is d. tariffs were raised by america's trading partners after the smoot-hawley tariff act, decreasing exports, and declining job rates.

i think it was because of how protected egyptian civilization was was which allowed them to evolve without much outside influence.