Which Type of Galaxy Is Very Difficult to See, but (Astronomers

question 11

Multiple Choice

Which type of galaxy is very difficult to see, but (astronomers recently realized) may be very common?

• A) spiral
• B) elliptical
• C) dwarf elliptical
• D) irregular
• E) none of the above

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Definitions:

Elastic

Describes a situation where the demand for a good or service significantly changes in response to a change in price.

Optimal Tax

A taxation principle aiming to maximize economic efficiency without imposing undue burdens or distortions.

Deadweight Loss

Economic efficiency loss occurring when free market equilibrium is not achieved for a good or service.

Revenues

The income generated from normal business operations and includes discounts and deductions for returned merchandise.