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Earths early atmosphere formed during the early Archean era which gas was generally absent from the atmosphere at that time?
Oxygen Please study this, & don't forget it so you don't have to keep looking up answers .
What are the 4 eras in earths history?
precambrian era, paleozoic era, mesozoics era, cenozoic era
What era did autotrophic prokaryotes enrich the atmosphere with oxygen?
autotrophic prokaryotes enriched the atmosphere with oxygen in the precambrian era :) hope this helps
How long ago did The Paleozoic era began?
The Paleozoic era began about 543 million years ago. It came after the Precambrian era and before the Mesozoic era.
What geologic era is known as the age of mammals and when did this era begin?
The Cenozoic Era. This began 65.5 million years ago.
What was earths atmosphere oceans and continents began to form during a period of earths history called?
precambrian era
Earths early atmosphere formed during the early Archean era which gas was generally absent from the atmosphere at that time?
Oxygen Please study this, & don't forget it so you don't have to keep looking up answers .
Match the era on the left with its characteristic on the right?
Precambarian- When earth’s atmosphere formed Mesozoic- Ended with a massive impact Paleozoic- When oxygen-breathing organisms first thrived Cenozoic- Began about 65 million years ago Hope this helps! :)
Precambrian Time which includes most of Earths history began with?
Earth forming from a mass of dust and gas :)
What are the 4 eras in earths history?
precambrian era, paleozoic era, mesozoics era, cenozoic era
True or false during the second geological era all land that had formed began to move together to form one continent?
True
The first era of Western music in which instrumental music was as important as vocal music was the?
I believe it was the Baroque Era. The Baroque Era was when instruments really began to develop. Orchestras and ensembles were formed, and secular music began to flourish. The Medieval Era was mostly religious music or ballads sung by troubadours, so I think the human voice was more prominently known in that time.
Who began the era of television politics?
The era of television politics began with John F. Kennedy.
What era was the Great Lakes formed?
I believe it is in the Cenozoic Era because they were formed in the last ice age which was during this era.
Fossil record began in this era?
Mesozoic era
Where was precambrian era?
it was on earth the precambrian era is an era that happend several million years ago on the earths surface
What era did autotrophic prokaryotes enrich the atmosphere with oxygen?
autotrophic prokaryotes enriched the atmosphere with oxygen in the precambrian era :) hope this helps
