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Home Q & A Board Science-Related Homework Help Physics
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einsteindude einsteindude
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9 years ago
How come an animal's carbon-14 levels do not start to decrease until it dies?
A) because it constantly replenishes its carbon-14 supply by eating plants with carbon-14 in them
B) because it constantly replenishes its carbon-14 supply by breathing air with carbon-14 in it
C) because it is constantly being bombarded with cosmic rays
D) carbon-14 only starts to decay after the animal dies
E) The carbon-14 levels do not decrease because the carbon-13 in its skin protects it from cosmic rays.
Textbook 
Conceptual Physical Science

Conceptual Physical Science


Edition: 6th
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bSharpbSharp
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9 years ago
Super! Don't forget to mark my post as best answer Grinning Face
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