The Precambrian time period is the largest on the geological time scale.

True

Explanation:

The Precambrian Era, as it names states, occured before the Cambrian Era. It is divided into three eras:

Hadean Era Archean Era Proterozoic Era

According to scientists, this prolonged Era makes up for around 90 percent of Earth's history as it includes the formation of Earth to the subsequent 590-600 million years. This makes it the largest time period on the geological time scale.

Most of the fossils that belong to this era are the stromatolites, the earliest life-forms that ever existed on Earth.

The precambrian period is geologically the longest time period in history