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How much of the earths history does the pre-Cambrian era account for?
Wiki User
∙ 14y ago
The Precambrian Super-Eon lasted from Earths creation 4.54 billion years ago until the Cambrian Period 542 million years ago. Some 3.998 billion years. This accounts for about 88% of Earth's history.
Wiki User
∙ 14y ago
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How much of earths history took place during the Precambrian Eon?
4 billon years i think
Where does much of your history of Precambrian rocks come from?
Ores mined from shields...
According to the precambrian rock record much of earths first free oxygen combined with?
Earth was formed somehwat less than 4.6 billion years ago. The Cambrian Era begins around 542 million years ago. Subtracting these times provides for a PreCambrian Era of around 4 billion years in length. This time period makes up around 87% of Earth's total history.
Why is the earths history divided into long units of time?
So you can understaned it much more better and think about it!
What can horseshoe crabs tell us about earths history?
They Can tell us about how much thought God put into animals
Why is the earths history divide into very long unit of time?
So you can understaned it much more better and think about it!
Why is earths history divided into very long units of time?
So you can understaned it much more better and think about it!
What have scientist inferred from fossil stromatolites?
Stromatolites were much more abundant on the planet in Precambrian times which means that fossils found around stromatolites are typically from the Precambrian era.
According to the precambrian rock record much of earth's first free oxygen combined with what?
Iron
How much of earths oceans cover earths surface?
70% or 80% of water covers the earths surface
How much earths can fit in Jupiter?
1,321 Earths can fit in Jupiter.
Why hasn't cyanobacteria evolved much since the Precambrian Era?
There are many different types of cyanobacteria. We are just now beginning to discover how many exist in a drop of seawater. We have no idea how many existed in the Precambrian era.
