The planet that will take the longest amount of time to orbit the Sun is D) Uranus
Explanation:
We can answer this question by using Kepler's third law of planetary motion, which states that:
"The square of the orbital period of revolution of a planet around the Sun is proportional to the cube of the semi-major axis of its orbit"
Mathematically,
[tex]T^2\propto a^2[/tex]
where
T is the orbital period
a is the semi-major axis
This means that the farther a planet is from the Sun (larger value of [tex]a[/tex]), the longer its period of revolution (larger [tex]T[/tex]).
Among the planets given, Uranus is the farthest from the Sun: therefore, this means that it is also the planet that has the longest period of revolution.
Learn more about Kepler's laws:
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