Answer may vary

Answer may varyQ1. what is the oldest fossil?

Q2.why is it important to know the age of the fossil?​

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Answer :

Cyanobacteria

1.

Cyanobacteria: Fossil Record

The oldest known fossils, in fact, are cyanobacteria from Archaean rocks of western Australia, dated 3.5 billion years old. This may be somewhat surprising, since the oldest rocks are only a little older: 3.8 billion years old!

Explanation:

2.

Determining the ages of fossils is an important step in mapping out how life evolved across geologic time. The study of stratigraphy enables scientists to determine the age of a fossil if they know the age of layers of rock that surround it.

 

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