Praxis 5005 Practice Question
Of the following, which has Earth completed when it makes one revolution around the Sun?
Correct Answer: A
Rationale: When Earth completes one revolution around the Sun, it has completed one Earth year, which is approximately 365.25 days.
Option B, one Earth day, refers to the time it takes for Earth to rotate on its axis, which is much shorter than a year.
Option C, one light year, measures the distance light travels in one year, not a time period related to Earth's orbit.
Option D, one lunar month, pertains to the phases of the Moon and is about 29.5 days, significantly shorter than a year. Thus, only option A accurately represents the time taken for one complete revolution around the Sun.
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