Answer: Improvements in agriculture.
Explanation:
It looks like B and C are the correct answers.
History involves those things- we study the past to learn about the world back then.
Answer:
Explanation:
The correct option is D.
Marginal cost refers to the amount of money it cost a company to produce one more of a particular product while the marginal benefit refers to the benefit that is obtained as a result of producing that one extra product. Profit is maximized when the marginal cost equals the marginal benefits.
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