Which of the following factors seems to be most involved in causing the drop in the average age of menarche that has been seen in many industrialized nations over the past 150 years?
A) parenting skills
B) nutrition
C) education
D) genetics

Question

Quizplus · Accepted Answer

Research indicates that improved nutrition, particularly over the past century, has played a significant role in decreasing the age at menarche. As access to better quality and quantity of food has increased, women's bodies have been able to allocate more energy towards reproduction, causing earlier onset of puberty.

Which of the Following Factors Seems to Be Most Involved