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

---

Definitions:

Sore Throat

A painful, dry, or scratchy feeling in the throat, often a symptom of an underlying illness or infection.

Fever

An elevated body temperature, often a sign of infection or illness, indicating an immune response.

Unprotected Sex

Sexual activity without the use of condoms or other barrier methods that reduces the risk of sexually transmitted infections (STIs) and pregnancy.

Positron-Emission Tomography

A medical imaging technique that uses radioactive substances to visualize and measure changes in metabolic processes, and the functioning of tissues and organs.