The planet's day length all depends on their relationships to the sun as the planet that is located near the sun has longer days as compared to the planet that is located far off and the large gaseous planet have more and are less dense but all rotate on their axis.
Explanation: The length of a planets day is determined by the amount of time it takes for a planet to completely spin around and make one full rotation. This is known as a sidereal day which is the time in which a planet rotates once around its axis, relative to the point when the sun appears to cross the celestial equator while tilting towards from the observer.
From the explanation above, it can be concluded that none of the options is related to the length of a planet's day.
Answer : scientists determine the absolute age of a rock in millions of years before present rather than just the age of the rock relative to the rock units around it. This information helps geologists develop more precise geological history models for the rocks and regions they study.
