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What was a major change that occured on earth during the Precambrian era?
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What era featured the longest periods with no life forms on Earth.?
Precambrian
Is the Precambrian time the longest or shortest part of Earth's history?
The Precambrian time period is the longest time period of Earth's history.Looks like we have the same worksheet in school :)
What is the first 600 million years of the earth known as?
Precambrian
Precambrian Time which includes most of Earths history began with?
Earth forming from a mass of dust and gas :)
Which block of geologic time spans the largest percentage of Earth's history?
Precambrian
The of the earth was formed during the precambrian Era?
Yes it was
Scientists believe the earth was formed during what era?
PRECAMBRIAN :)a+
What hypothesis proposes that the entire Earth was covered with ice during the late Precambrian?
snowball earth
What did earth look like during the precambrian time?
It looked like a sphere
What did Earth look like during the Precambrian time period?
It looked like a sphere
What was the biggest change in the Earth's atmosphere between the Precambrian and the Paleozoic eras?
The Origin Of Free Oxygen.
How did earths atsmophere change during the precambrian time?
It changed from a reducing atmosphere containing no free oxygen to an atmosphere containing oxygen. The evolution of life on Earth "terraformed" the planet.
Human beings were present on earth from the beginning of the precambrian?
Human beings did not appear on Earth until much later, during the Quaternary period, around 2.5 million years ago. The Precambrian era, which spans from about 4.6 billion to 541 million years ago, predates the existence of humans by a vast amount of time. Life during the Precambrian consisted mostly of single-celled organisms.
What were the life forms in the precambrian era?
The Precambrian Era was the first emergence of complex, multicellular life forms on earth. Jellyfish and segmented worms were discovered to have lived during this time.
What did jellyfish eat during the precambrian time period?
Jellyfish were not even alive during the Precambrian era because only single-celled organisms lived.
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.
What was the longest segment of the earth's history?
It was the Precambrian time period.
