Question

which statement best describes how our solar system was formed? choose 1 answer: a a star collided with an asteroid, causing the asteroid to break up into planets and moons. b an interstellar cloud was drawn together by gravity, forming planets, moons, and a star. c two stars merged, creating a new star as well as many planets and moons.

Explanation:

The solar system formed from an interstellar cloud (nebula) of gas and dust. Gravity pulled the material in the cloud together, forming a protostar (which became the Sun) and the surrounding material that formed planets, moons, etc. Option A is incorrect as a star - asteroid collision isn't the formation mechanism. Option C is incorrect as solar system formation doesn't involve two stars merging. Option B correctly describes the nebular hypothesis of solar system formation.

Answer:

B. An interstellar cloud was drawn together by gravity, forming planets, moons, and a star.