Most of the emotions occur for the first time at some point in the second half of the first year through the second year.

surprise, interest, joy, anger, sadness, fear, and disgust. Other emotions that appear in infancy include jealousy, empathy, embarrassment, pride, shame, and guilt; most of these occur for the first time at some point in the second half of the first year or during the second year.

Explanation:

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answer; cultural trait;

answerthomas malthus wrote an essay on the principle of population;

hope this ,(malthus)