Over the Past 40 Years in the United States, the Average

question 158

Multiple Choice

Over the past 40 years in the United States, the average age at first marriage has _____ for both men and women.

• A)remained constant
• B)decreased by about 2 years
• C)increased by about 2 years
• D)increased by about 5 years

---

Definitions:

Appropriate Reagents

Correctly chosen chemicals used to bring about a desired chemical reaction, based on the necessary conditions and outcomes.

Alkene

Unsaturated hydrocarbons containing at least one double bond between carbon atoms, part of the family of olefins.

Enantiomers

Molecules that are mirror images of each other and are non-superimposable.

Asymmetric Carbon Atoms

Atoms of carbon in a molecule that are bonded to four different groups, leading to chirality or optical activity.