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natali 33 [55]
3 years ago
12

In the mid-20th century, researchers dredging the seafloor could not find any materials older than ________.

History
1 answer:
S_A_V [24]3 years ago
5 0
In the mid-20th century, researchers dredging the seafloor could not find any materials older than <span>180 million years old.

-Hope this helps.

</span>
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