The Average Length of a Period During Which a Given

question 37

Multiple Choice

The average length of a period during which a given magnetic field polarity exists is about

• A) 10,000 years.
• B) 100,000 years.
• C) 500,000 years.
• D) 1,000,000 years.

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Definitions:

Trich

Short for Trichomoniasis, a sexually transmitted infection caused by the parasite Trichomonas vaginalis.

Nyctalopia

A condition often referred to as night blindness, where individuals have difficulty seeing in low light or darkness.

Night Blindness

A condition that impairs the ability to see in low light or darkness.

Trich-

A prefix meaning related to hair.