Careful observations of the orbit of Uranus demonstrated the existence of:
A) the Oort Cloud.
B) the Kuiper Belt.
C) Pluto.
D) Neptune.

Question

Quizplus · Accepted Answer

Careful observations of the orbit of Uranus revealed irregularities in its path, which led astronomers to predict the existence of another planet beyond Uranus that was affecting its orbit. This prediction led to the discovery of Neptune in 1846.

Careful Observations of the Orbit of Uranus Demonstrated the Existence