Examlex
Walking across an Antarctic ice sheet during winter would not be very treacherous,because icy surfaces are not slippery if the temperature is well below freezing.
Frequency of Dating
How often an individual goes on dates, indicating their level of social or romantic activity.
Altruism
The selfless concern for the well-being of others without expectation of reward or benefit.
Reciprocity Norm
A social norm that expects individuals to help those who have helped them, ensuring mutual aid and cooperation in human societies.
Free Samples
Items given without charge to potential customers to try the product before making a purchase.
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