A geologist is attempting to date a layer of sedimentary rock. He performs radioactive dating using uranium-235, which has a half-life of 70

Question

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

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Hải Đăng 3 years 2021-09-05T00:38:08+00:00 2 Answers 11 views 0

Answers ( )

  1. nguyetanh
    0
    2021-09-05T00:39:47+00:00
    Reply

    It’s 2.11 billion years

  2. Euphemia
    0
    2021-09-05T00:39:55+00:00
    Reply

    Answer:

    2.11 billion years.

    Explanation:

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

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