Which of the Following Statements About the U

question 35

Multiple Choice

Which of the following statements about the U.S. Clean Air Act is true?

• A) The Clean Air Act of 1970 focused on about 200 air pollutants.
• B) The most dramatic improvement in air quality has been a reduction of lead in the atmosphere.
• C) Sulfur dioxide emissions since 1970 have been reduced by over 90%.
• D) The Clean Air Act was passed in 1970, but has not been updated since then.
• E) Urban areas have done the best job of meeting the standards for clean air.

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Definitions:

Competitive Market

A market structure characterized by a large number of buyers and sellers, free entry and exit, and products that are close substitutes, leading to price determination by supply and demand.

Coconuts

Tropical fruits with a hard outer shell and milky interior, known for their versatility in food products and industrial uses.

Fish

Aquatic animals that are typically cold-blooded, covered with scales, and equipped with fins, used as a significant food source for humans.

Comparative Advantage

An economic principle that refers to the ability of an entity to produce goods or services at a lower opportunity cost than others, leading to more efficient trade.