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About this resource:


Authority Status: 
Derived Statement
Date Created: 
2013-04-09
Indexing Status: 
Yes
Education Level: 
9, 10, 11, 12
Subject: 
Science
Statement Notation: 
DCI.ESS1.C.9-12.5
List Identifier: 
Description en-US:  Continental rocks, which can be older than 4 billion years, are generally much older than the rocks of the ocean floor, which are less than 200 million years old.
Language: 
English

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