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Author Question: What is the ultimate source for naturally occurring carbon-14? A) Cosmic ray collisions and ... (Read 79 times)

evelyn o bentley

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on: Jul 16, 2018
What is the ultimate source for naturally occurring carbon-14?
 
  A) Cosmic ray collisions and neutron capture involving nitrogen
  B) Dissolution of carbonate rocks
  C) Decay of unstable parent isotopes to create a stable carbon-14
  D) Volcanic eruption and emission of greenhouse gases

Question 2

In radioactive decay, an unstable ________ isotope will decay into a stable ________ isotope.
 
  A) ion; carbon
  B) parent; daughter
  C) daughter; parent
  D) neutron; ionized


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Leostella20

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


evelyn o bentley

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Reply 2 on: Jul 16, 2018
Excellent

kswal303

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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