Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Which of the following are important for understanding why the C-14 isotope ratio of a life form is often able to be used to determine how long it has been dead for.
Question 4 options:
|
Cosmic rays interact with nitrogen-14 in the atmosphere |
|
C-14 is produced in photosynthesis. |
|
In photosynthesis plants release oxygen gas into the atmosphere. |
|
In photosynthesis plants absorb atmospheric CO2 gas. |
|
C-14 is heavier than C-12. |
|
Non-plant lifeforms ultimately depend on plant life as their primary source of carbon. |
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