They increase pressure. I think. It might be wrong though
Answer:
An example that addresses the opportunity cost without involving money, could be: You used your day off cleaning the house, when you could have gone to see your childhood friends.
Explanation:
Opportunity cost is usually established by spending money. This is because money is a scarce resource, which if used in one situation cannot be used in others. To create examples of opportunity cost without using money, we must use another scarce resource, such as time, for example. In this case, a good example would be the time spent cleaning the house, which could have been used to find old friends.
It is lunar cycles *if this helped you in anyway please be sure to leave a thanks:)
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