Which of the Following Significantly Improved Air Quality in the United

question 31

Multiple Choice

Which of the following significantly improved air quality in the United States?

• A)Eliminating lead in paint.
• B)The use of catalytic converters.
• C)The elimination of chlorofluorocarbons.
• D)All these statements are correct.
• E)None of these statements are correct.

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Definitions:

Cancer

A disease characterized by the uncontrolled division of abnormal cells in a part of the body, which can lead to tumors and spread to other areas.

Age

The length of time that a person or thing has existed; a particular stage in someone's life.

Infant Son

A male child in the earliest period of life, typically before he begins to walk or talk.

Pounds

A unit of weight commonly used in the United States and the British Commonwealth, equal to 0.453592 kilograms.