What evidence led astronomers to conclude that the Oort cloud is a spherical distribution of comets?
A)direct observation of comets orbiting the sun in the Oort cloud
B)the observation that comets enter the solar system from random directions
C)Astronomers did not draw that conclusion; the Oort cloud is shaped like a flat ring in the same plane as the planets.

Question

Quizplus · Accepted Answer

The observation that comets enter the solar system from random directions suggests that they originate from a spherical distribution rather than a flat ring. There has been no direct observation of comets orbiting the sun in the Oort cloud.

What Evidence Led Astronomers to Conclude That the Oort Cloud