Answer:
Subsistemas:En otras palabras, un subsistema es un conjunto de elemento interrelacionados que, en sí mismo, es un sistema, pero a la vez es parte de un sistema superior.
Principios:Primer momento de la existencia de una cosa.
Explanation:
Lo siento, solo hice un par, hablo inglés y no sé mucho español
The stock market crashed a little after Hoover took office and the Great Depression became the central issue of his presidency. Hoover pursued a variety of policies in an attempt to lift the economy but opposed directly involving the federal government in relief efforts.
<span>I think Excess demand is handled by decreasing prices.
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The Wright brothers flew their first plane in 1903 and the first continental railroad opened in 1869 if you subtract those two you would get 34 years after
