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What is the time range of Precambrian Era?
Precambrian time - The period in the geologic time scale from the formation of the Earth to the beginning of the Palezonoic era, from about 4.6 billion to 543 million years ago.
What are the subdivisions of the Precambrian era?
The Precambrian era is divided into three subdivisions: the Hadean, Archean, and Proterozoic eons. These subdivisions represent different stages in Earth's early history, from the formation of the planet to the evolution of complex life forms.
What part of the earth was formed during the Precambrian Era?
50% of Canada was created during this era. This part is called Canadian Shield.
Why is the PreCambrian era not divided into periods?
The Precambrian era is not divided into periods because the geological record from this time is more limited and less well understood compared to more recent eras. The lack of distinct fossils and rock layers make it challenging to establish clear boundaries for periods within the Precambrian. Instead, geologists have divided it into eons - the Hadean, Archean, and Proterozoic eons.
Early organisms in the Precambrian era converted what to oxygen?
Early organisms in the Precambrian era converted carbon dioxide to oxygen through photosynthesis. This process eventually led to the increase in atmospheric oxygen levels, paving the way for the evolution of more complex life forms.
Historians know least about era do?
**Precambrian**
When was the Founding Era?
the Precambrian era
What are two subdivisions of the Precambrian Era called?
The two subdivisions of the Precambrian Era are the Hadean and the Archean Eons.
There was no life on land during this era?
Precambrian Era
Did the precambrian era occur first?
Yes. The first era was the precambrian era followed by the paleozoic era then the mesozoic era than the Cenozoic era.
What are the chracteristics of the geological era and the definition of precambrian Cenozoic mesozoic and paleozoic?
Precambrian
What era featured the longest periods with no life forms on Earth.?
Precambrian
What fossils are from the Precambrian era?
Stromatolites
What era is furthest in the past?
Precambrian !!!
What era is when life begins?
Precambrian
When did the precambrian era begin?
The Precambrian Era began in the time period 4600 and ended in 570.
Which describes the correct order of the geologic time scale from oldest to most recent?
ok im going to start off by saying this, the last answerer is stupid, and doesnt know what he is talking about. it goes from: PERIOD ERA EPOCH there you go ;)
