Examlex
Carbon-14 dating is based on the ratio of the parent isotope ____________________ to the daughter isotope ____________________.
Unintended Pregnancy
A pregnancy that is either undesired at the time of conception or not planned at all.
Marital Status
The legally recognized standing of an individual's relationship, such as single, married, divorced, or widowed.
Income
Earnings received through work, investments, or social benefits, used to support oneself and family.
Reproductive Age
The period in the life of both males and females during which they are capable of reproducing sexually.
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