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_____it is providing information about surface conditions that existed in the earth's past

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Sagot :

Answer:

The key pieces of evidence for conditions in the Hadean come from a very few samples of crust that have survived to the present day. Chemical remains in the form of 'zircons' suggest liquid water in the upper crust of the Earth, if not the surface, as early as 4.4 billion years ago.

Explanation: