Prison labor is a form of unfree labor. It is the forced labor done by the convicts in a prison. The prisoners may have to do even hazardous labor.
Answer:C) Natural selection
Explanation:
C) Natural selection is the process under which species with resistant traits are able to survive better and adapt to different environmental pressures , climate changes and competition for resources or food and are able to reproduce as many as possible of the same species with similar traits , as a result of this these traits are carried from generation to generation.
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