Question

put the steps of the solar systems formation in the order in which they must have occurred.
first
matter within the protoplanetary disk condensed into clumps.
hydrogen atoms in the protostar’s core fused together to form helium atoms, transforming the protostar into a star, the sun.
gravitational collapse occurred in a dense area of gas and dust within the solar nebula.
a large cloud of gas and dust left over from the sun’s formation rotated and flattened.
the newly formed protostar gathered matter due to gravity, which increased its internal pressure and temperature.
earth and other planets formed as clumps of dust, ice, and rock gained mass and pulled in even more matter

Explanation:

The solar system forms starting from a dense region in a nebula that collapses under gravity. This forms a protostar that grows in pressure and temperature. The remaining cloud flattens into a protoplanetary disk, where matter clumps together. The protostar becomes the Sun when hydrogen fusion starts, and finally, the clumps grow into planets.

Answer:

1. Gravitational collapse occurred in a dense area of gas and dust within the solar nebula.
2. The newly formed protostar gathered matter due to gravity, which increased its internal pressure and temperature.
3. A large cloud of gas and dust left over from the Sun's formation rotated and flattened.
4. Matter within the protoplanetary disk condensed into clumps.
5. Hydrogen atoms in the protostar's core fused together to form helium atoms, transforming the protostar into a star, the Sun.
6. Earth and other planets formed as clumps of dust, ice, and rock gained mass and pulled in even more matter.