Question

scientists can predict the return of comets for us to view from earth as they pass by. this is because
the sun forces the comets to return at regular rates.
comets follow an orbit that is determined by the gravitational interactions with the sun
comets move randomly and are pulled back to the sub periodically.
the orbit matches the earth’s orbit.

Explanation:

To determine the correct answer, we analyze each option:

• "the Sun forces the comets to return at regular rates" is incorrect as the Sun's gravity determines the orbit, not a direct "force" for regular return rates.
• "comets follow an orbit that is determined by the gravitational interactions with the Sun" is correct. Comets' orbits are governed by gravitational forces from the Sun, allowing prediction of their return.
• "comets move randomly and are pulled back to the Sun periodically" is incorrect because comets do not move randomly; their orbits are predictable due to gravity.
• "the orbit matches the Earth’s orbit" is incorrect as comets have highly elliptical orbits different from Earth's nearly circular orbit.

Answer:

B. comets follow an orbit that is determined by the gravitational interactions with the Sun