A Parsec Is I. a Unit of Length Used in Astronomy

question 44

Multiple Choice

A parsec is
I. a unit of length used in astronomy
II. 2.06 × 10⁵ AU
III. the distance to an imaginary star whose stellar parallax is one arc second
IV. 3.26 light years
V. the longest unit of length in astronomy

• A) I, II, V
• B) II, IV
• C) I, III, IV, V
• D) I, II, III, IV, IV

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Definitions:

Dorsal

Pertaining to the back or posterior of an organism, opposite of ventral.

Caudal

Pertaining to or located near the tail or the posterior part of the body.

Ventral

Pertaining to the front or anterior of the body; opposite of dorsal.

Primary Bronchi

The major air passages that branch off directly from the trachea into each lung.