After Studying an Exoplanet System Carefully, Astronomers Determine That the Intervals

question 22

Multiple Choice

After studying an exoplanet system carefully, astronomers determine that the intervals between the transits of a given exoplanet vary in a complex fashion. This most likely indicates that the system

• A) has an exoplanet with a thick atmosphere.
• B) is actually a binary star.
• C) has multiple exoplanets.
• D) has an exoplanet with a ring system.

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Public Good

A good that is non-excludable and non-rivalrous, meaning it can be used simultaneously by more than one person without reducing its availability to others.

Flat Road Tax

A fixed-rate tax imposed on vehicle owners, irrespective of the vehicle's value, emissions, or usage levels.

Optimal Area

The most efficient or advantageous point or region for a particular activity or the achievement of the highest benefit given constraints.

Public Education

A system where the government provides educational services without direct charge to households, funded by taxation.