Question

Stars have life spans and are born in a ? , a cloud of dust and gas. Gravity pulls the dust and gas together. Stars die when they use all their fuel. Huge groups of stars make up of ? . Galaxies are formed by spinning clouds of gas and individual stars are born within galaxies.

Answer 1

Stars have life spans and are born in a **nebula**, a cloud of dust and gas. Gravity pulls the dust and gas together. Stars die when they use all their fuel. Huge groups of stars make up **star clusters** or **galaxies**. Galaxies are formed by spinning clouds of gas, and individual stars are born within galaxies.