Question

which evidence is most likely used to indicate the beginning of solar system formation? materials combined to form a mass. materials were pulled together by gravity. water condensed and collected to form oceans. different species of microorganisms lived on earth.

Explanation:

The formation of the solar - system is thought to have occurred through the gravitational pulling together of materials to form a mass. This is in line with the nebular hypothesis. The other options are related to the development of life on Earth (different species of microorganisms lived on Earth) and the formation of oceans (water condensed and collected to form oceans), which are not related to the beginning of solar - system formation.

Answer:

Materials were pulled together by gravity.