Multiple choice

Year, unit of time measurement is base on

  1. Earth's rotation round its axis

  2. Orbital period of earth around the sun

  3. Earth's position in the solar system

  4. Inclination of the plane of earth orbit to its Equatorial
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A year is defined as the time it takes for Earth to complete one orbit around the Sun, which is approximately 365.25 days. This orbital period is the basis for our calendar system and measurement of time. Earth's rotation on its axis determines day length, not year length.

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