[Answered] To date relatively young rocks and materials, we use the decay of A) uranium-238 to lead-206. B) ...

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Author Question: To date relatively young rocks and materials, we use the decay of A) uranium-238 to lead-206. B) ... (Read 41 times)

fbq8i

Hero Member
Posts: 527

on: Jul 29, 2018

To date relatively young rocks and materials, we use the decay of

A) uranium-238 to lead-206.
B) potassium-40 to argon-40.
C) carbon-14 to nitrogen-14.
D) uranium-235 to lead-207.

Question 2

To date the age of Earth, we look for rocks with a high percentage of

A) uranium-235 to lead-207.
B) uranium-238 to lead-206.
C) potassium-40 to argon-40.

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steff9894

Sr. Member
Posts: 337

Reply #1 on: Jul 29, 2018

Answer to Question 1

Answer: C

Answer to Question 2

Answer: B

fbq8i

Hero Member
Posts: 527

Reply #2 on: Jul 29, 2018

Thank you!

steff9894

Sr. Member
Posts: 337

Reply #3 on: Jul 29, 2018

Always glad to help...

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Author Question: To date relatively young rocks and materials, we use the decay of A) uranium-238 to lead-206. B) ... (Read 41 times)

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