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Class 10 Science Medium Mcq English Medium

Puberty changes such as facial hair in boys typically appear

Question
Puberty changes such as facial hair in boys typically appear
uniformly and fully all at once
first as a few scattered hairs, becoming more uniform only gradually
only after age 40
identically in every individual at the same rate
Answer
first as a few scattered hairs, becoming more uniform only gradually
Detailed Explanation
The chapter notes that facial hair in boys first appears as a few scattered hairs, becoming uniform only slowly over time.
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