What Is a Quasar

question 99

Multiple Choice

What is a quasar?

• A) a star-like object that actually represents a bright patch of gas in the Milky Way
• B) a very large galaxy thought to be formed by the merger of several smaller galaxies, resulting in a quick burst of star formation
• C) The name given to the largest objects in the Kuiper Belt
• D) the extremely bright center of a distant galaxy, thought to be powered by a supermassive black hole
• E) another name for very bright stars of spectral type O

Understand the definitions and differences between Pigovian taxes and command-and-control policies.

Recognize the concept of externalities and their impact on market efficiency.

Identify and contrast different public policies toward externalities.

Calculate the social value of goods considering both external costs and benefits.