Which of the Following Is Not Necessary for Celestial Navigation

question 19

Multiple Choice

Which of the following is not necessary for celestial navigation?

• A) The ability to tell time by means of circadian clock
• B) The ability to compare position of sun or stars to horizon
• C) Obvious landmarks
• D) Compass sense
• E) Map sense

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Definitions:

Nonrival

A characteristic of a good or service that allows its consumption by one person without reducing its availability to others.

Common Resources

Natural or man-made resources that are not owned by anyone, tend to be overused or depleted, and are difficult to exclude people from using.

Public Goods

Goods that are non-excludable and non-rivalrous, meaning they can be used simultaneously by more than one person without diminishing availability to others.

Private Goods

Goods that are excludable and rival in consumption, meaning their use by one person prevents use by another.