Girls Menstruated at an Average Age of 16 in the Nineteenth

question 2

Multiple Choice

Girls menstruated at an average age of 16 in the nineteenth century, but today some girls reach menarche as early as age 9. This phenomenon is called the _____ trend.

• A) pubertal
• B) spermarchal
• C) secular
• D) menarchal

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Definitions:

Scale

The size, extent, or level of something, typically used in the context of production or operations to indicate magnitude or capacity.

Returns to Scale

A concept in economics that describes how the output of a firm changes as all its inputs are increased proportionally.

Short Run

A period in economics during which at least one factor of production is fixed, limiting the adjustment processes of the economy.

Production Function

A mathematical representation of the relationship between inputs used in production and the output generated.