Answer:
An eon
Explanation:
The first broad division of the geologic timescale is the eon. Others are Eras, Periods and Epoch.
Eons are the most broad and the largest of divisions of the timescale. There are two categories of the eons which are:
- Hadean eon
- Archean eon
- Proterozoic eon
- Phanerozoic eon
The Phanerozoic eon is the most recent. The Hadean eon is the is the oldest eon.
The answer is closer.
Parallax is used to determine how far a star is from earth by measuring its parallactic angle. If star a has a larger parallactic angle than star b, star a is closer than star b.
<h3>What is parallax?</h3>
When there is a difference in the direction of a celestial object as seen by an observer from two points which are widely separated, then this distance is termed as parallax.
This parallax measurement is used to find the distance of the body from Earth which is called Geocentric parallax and from the Sun which is called Heliocentric Parallax.
To know more about parallax, visit:
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3.Sea level
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