Answer:
According to the NEBULAR model, the solar system formed from a cloud of dust and gas.
Step-by-step explanation:
According to Nebular model, the solar system was formed from molecular cloud of dust and gases. The material accreted and collapsed under its own weight. The rotating core gathered more mass increasing its temperature and pressure until nuclear fusion reaction started and Sun was born. The rest of the material flattened into disk from which planets were formed.