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<u><em>The Mexican Revolution started in 1910, when liberals and intellectuals began to challenge the regime of dictator Porfirio Díaz, who had been in power since 1877, a term of 34 years called El Porfiriato, violating the principles and ideals of the Mexican Constitution of 1857</em></u>
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Answer:
The “Great Frost” of 1740 was one of the coldest winters of the eighteenth century and impacted many coun- tries all over Europe. The years 1740–1741 have long been known as a period of general crisis caused by harvest failures, high prices for staple foods, and excess mortality.
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Answer:
Law of increasing costs.
Explanation:
The law of increasing costs is a rule in economic science, according to which with increasing production of the product the opportunity costs also increase, that is, with the production of each new unit of product, the costs of producing this additional unit of product also increase.
Opportunity costs are the number of products that must be sacrificed in the production of any quantity of other products. And the law of increasing costs states that the production of an additional unit of product 1 leads to an increase in the number of refusals to produce product 2.