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kogti [31]
3 years ago
8

A geologist is attempting to date a layer of sedimentary rock. He performs radioactive dating using uranium-235, which has a hal

f-life of 703 million years. He determines that the uranium-235 has undergone 3 half-lives. Approximately how old is the rock?
710 billion years

2.11 billion years

710 million years

235 million years

2.11 million years

none of the above
Chemistry
2 answers:
Sindrei [870]3 years ago
6 0
It’s 2.11 billion years
Bad White [126]3 years ago
4 0

Answer:

2.11 billion years.

Explanation:

I hope this helps! Have a great rest of your day!

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vekshin1

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