Part 4/10:
The theory of a growing Earth posits that the planet was smaller in its primordial state, gradually accreting material through various processes. As celestial bodies were formed from the remnants of a primordial solar nebula, gravitational forces played a critical role in drawing together matter, leading to the formation of early planetary bodies. As the Earth heated up, processes began to create various gases, thereby allowing for the formation of higher-count atoms, subsequently contributing to the size of the planet.