Question

question 1 - 11
which of the following describes how gravity played a role in the formation of planets?
gravity caused large particles to separate into smaller particles, which then became planets.
gravity caused the particles to rotate and spin to form a nebula, which then became the planets.
gravity caused small particles to collide to form larger particles, which eventually formed planets.
gravity caused the solar nebula to collapse toward its center, causing it to become dense and hot, allowing planets to form.

Explanation:

According to the nebular hypothesis, gravity caused small particles to collide and form larger particles (planetesimals), which eventually formed planets. The first option is incorrect as gravity causes aggregation, not separation. The second option is wrong because a nebula is a cloud of gas and dust, and planets form from planetesimals within it. The fourth option describes the formation of the Sun (solar nebula collapse for the Sun's formation, planets form from remaining material through particle - collision).

Answer:

Gravity caused small particles to collide to form larger particles, which eventually formed planets.