"What is the highest level measurement or the longest period of time on Earth?

Answer 1

"E R A"

In chronology, an era is the highest level for the organization of the measurement of time.

An era is a long period of time with different technical and colloquial meanings, and usages in language. It begins with some beginning event known as an epoch, epochal date, epochal event or epochal moment (the latter in particular referring to a great deal of precision as in astronomy). When era is extended to a calendar system, it is known as a calendar era.

The word era also denotes the units used under a different, more arbitrary system where time is not represented as an endless continuum with a single reference year, but each unit starts counting from one again, as if time starts again. Such rather impractical system — a nightmare for historians once a single piece of the puzzle is missing — is the use of regnal years, which often reflects the preponderance in public life of the absolute ruler in many ancient cultures, while such tradition sometimes outlives the political power of the throne.

Answer 2

Eon, sometimes spelled, Aeon . Latin meaning "for eternity".
Merriam-Webster's definition : an immeasurably or indefinitely long period of time, or : a very large division of geologic time usually longer than an era, or : a unit of geologic time equal to one billion years.

Answer 3

I know that three trillion dollars (ones) will go from the earth to the moon piled back to back.

Answer 4

infinity!!!!!!!!!!!!!!!