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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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drelog drelog
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8 years ago
Zircons found in continental rocks give evidence that continental crust was forming as long ago as ________.
A) 10,000 years ago
B) 70 million years ago
C) 1.9 billion years ago
D) 4.4 billion years ago
E) 564 million years ago
Textbook 
Earth Science

Earth Science


Edition: 14th
Authors:
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ןnɟʎoɾ sʎɐʍן∀ Slight Smile
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PulsaPulsa
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#1
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8 years ago
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drelog Author
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#2
8 years ago
Double checked your answer with my friend, it's right Smiling Face with Open Mouth
ןnɟʎoɾ sʎɐʍן∀ Slight Smile
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#3
5 years ago
thank you!
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