Which Statement Best Summarizes the Effectiveness of U

question 52

Multiple Choice

Which statement best summarizes the effectiveness of U.S. environmental policies enacted over the past 30 to 40 years?

• A) They have led to significant improvements in the environment and have improved the quality of our natural resources.
• B) Surface water quality has improved across the board, while air quality remains poor.
• C) They have had mixed results: While point source pollution has declined and urban air quality improved, other conditions have not improved.
• D) The Superfund cleanup efforts have been much more cost effective than expected.

---

Definitions:

Bottle-Fed

Referring to infants who receive nutrition from bottles rather than breastfeeding, involving formula or other substitutes.

Infants

Young children from birth to one year old, characterized by rapid physical and cognitive development.

Androgen

Steroid hormones that play a key role in the development of male traits and reproductive activity.

Leptin

A hormone produced by fat cells that helps to regulate body weight by inhibiting hunger and thus reducing food intake.