Answer:
He oversaw the construction of schools and universities.
\ Explanation:
The Mississippi-missouri river system is the largest river system in America.
Answer:
Opportunity cost is the cost of a foregone alternative. If you chose one alternative over another, then the cost of choosing that alternative is an opportunity cost. Opportunity cost is the benefits you lose by choosing one alternative over another one.
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Answer: adaptation, prevents brain from being overwhelmed by unimportant stimuli