Examlex
As its name implies, the _ _ star has fused its protons and electrons.
Exchange
The act of giving one thing and receiving another, especially of the same type or value, commonly used in the context of goods, services, or financial instruments.
Individuals
Refers to single human beings, distinct from a group, class, or family.
Comparative Advantage
The ability of an individual or group to carry out a particular economic activity more efficiently than another activity.
Opportunity Cost
The value of the next best alternative foregone as a result of making a decision.
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