The preposition is followed by its object (and words that modify the object in the prepositional phrase). A preposition is a word that occurs before a noun/pronoun in a clause. Preposition means, pre-before and position-the object's location.
The most widely accepted scientific explanation for the formation of the Solar System is called the Solar Nebular Model. According to this model, the entire Solar System formed around 4.5 billion years ago from the gravitational collapse of a small fraction of a giant molecular cloud, also known as a nebula.
According to the âcaptureâ model, meanwhile, the moon formed elsewhere in the solar system and was brought into orbit by Earthâs gravitational field. Yet another theory holds that the moon and Earth were born at the same time, sprouting from a single cloud of material within the original nebula that created the entire solar system. But ever since the mid-1970s, another scenario has edged out these lunar origin schemes to become the reigning hypothesis.