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Why is the shield also referred to as the Precambrian Shield?

Because it was created in the precambrian era...The Candadian Shield was formed in the Precambrian Era.The rocks of the Canadian Shield formed during the Precambrian time.


Why is the Canadian Shield also referred to as the Precambrian Shield?

Because it was created in the precambrian era...The Candadian Shield was formed in the Precambrian Era.The rocks of the Canadian Shield formed during the Precambrian time.


Why is the Canadian Shield also referred as the Precambrian Shield?

Because it was created in the precambrian era...The Candadian Shield was formed in the Precambrian Era.The rocks of the Canadian Shield formed during the Precambrian time.


Did plants colonized dry land during the precambrian time?

yes


How many living organisms were alive during the precambrian time?

155.92yrs


Cyanobacteria are as significant to this process today as they were during precambrian time?

hello there


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 did earth look like during the precambrian time?

It looked like a sphere


What was the longest segment of the earth's history?

It was the Precambrian time period.


What was the climate like in precambrian times?

That's a very long timetable from 4,500, 000,000 years ago right up to 542,000,000 years ago, a total of 3,958,000,000 years.From low surface temperatures, with extensive glaciation to warm temperate conditions and no glaciation, which seemed to have occured in cycles over that time period.


What animals existed during the Precambrian Time?

jellyfish-like animals, sea pen, and bacteria.


How has the earths atmosphere changed during the Precambrian time?

During the Precambrian time, the Earth's atmosphere lacked free oxygen, and the early atmosphere was likely composed of gases such as methane, ammonia, and carbon dioxide. Throughout the Precambrian, there were significant changes in atmospheric composition due to volcanic activity and the evolution of photosynthetic organisms that contributed oxygen to the atmosphere.